Intake heater light on freightliner

8 posts · Joined 2008. #1 · Jan 4, 2009. I have tested the relays (solenoids) now trying to test the actual grid heater just need to know how many ohms resistance should the element have. I know there is power to the heater just need to test the heater to make sure it is working correctly. Thanks for your time.

Blog Entries: 1. CAT 3126 does not have glow plugs and uses an air intake pre heater. Not sure there is a fuse for that but check the wiring diagram for your coach and see. Or, a visit to a CAT shop. __________________. 2007 Country Coach Allure Siskiyou Summit, sold/traded Nov. 2018. 2019 Grand Designs 384GK-R 5th wheel.The Cummins air intake ( grid ) heater , is in a square block about 2 1/4" high sandwiched between the air tubing from the CAC ( Charge Air Cooler ) and the intake manifold . There are two studs on the heater , power and ground . Think of the heater as a 12 volt toaster element to warm the combustion air in the intake manifold .C3-A Optional Fuel Water Separator Heater C4-C Left Park Lamp C4-L Right Park Lamp C4-D Left Marker Lamp C4-M Right Marker Lamp C3-N Turn Left Front/Side C1-G Turn …83.....Heater and Air Conditioner 88.....Hood, Grille, and Cab Fenders Introduction Maintenance Manual Contents I–4 108SD and 114SD Maintenance Manual, November …Nov 6, 2011. #4. Yes, when you turn the key to the run position the gauges will sweep from the lowest values to the highest and the solenoids in the air valves will do a "chuff" test. Then the gauges will go to the positons for the conditions present when the engine is off. I'm not sure of the 5.9 Cummins engine has an intake manifold grid ...Thanks for the information. The 2 wire sensor is the intake air temp sensor. The 3 wire sensor is the Boost pressure sensor. Thr boost has nothing to do with the intake heater. The other sensor is the coolant temp sensor. It is located in the top of the block on the drivers side. It ia a 2 wire sensor as well.Do you know how to remove your car's intake manifold? Find out how to remove your car's intake manifold in this article from HowStuffWorks. Advertisement Repairing your car may see...

EPA07 MBE 4000 OPERATOR'S MANUAL. HOT COOLANT To avoid scalding from the expulsion of hot coolant, never remove the cooling system pressure cap while the engine is at operating temperature. Wear adequate protective clothing (face shield, rubber gloves, apron, and boots). Remove the cap slowly to relieve pressure.Jan 22, 2024 · I have a 2004 FREIGHTLINER M2-16 with a DT 466 Diesel engine. While driving it it runs fine but at decceleration at almost full stop, it starts shaking and acting up and the intake heater light comes … read more To light a Dyna Glo propane heater, assemble the heater, connect it to a propane supply system, open the propane supply valve, and light the burner or pilot light. To stop the heat... Tail Light Configurations (Module 294) Trailer Interfaces (Module 296, 297) (Module ) Engine Interface (Black Plug) (Plugs may also be frame located) 148, 163, 87L Transmission (Grey Plug) (Plugs may also frame located Interfaces. be (Module , 34C) Electrical Component Overview 2010 M2 Electrical Body Builder Reference Page # 2 Rev: New To contact Freightliner about a concern about a specific vehicle call the Customer Assistance Cen-ter at 1-800-385-4357 or complete a Product Concern Form. To contact Transport Canada, call the Defect In- ... 6 Heater, Ventilator and Air Conditioner .....6.1 7 …EZWiring EZWiring™ makes Freightliner, Sterling, Western Star, Thomas Built Buses, and Freightliner Custom Chassis Corporation products’ wiring drawings and floating pin lists available online for viewing and printing. EZWiring can also be ac-cessed from within PartsPro. Introduction Descriptions of Service PublicationsA cold-air intake -- one ducted to bring air in from outside the engine bay -- won't necessarily change the sound of a car, but a short intake will. This noise can be quite pronoun...2004 Freightliner FS65 Thomas school bus. 165,718 miles on odometer, 7,778 hours on meter, Caterpillar C7 7.2L L6 turbo diesel engine, Automatic transmission, Single axle, Heat, Cruise, Heated mirrors, Vinyl interior, 65 passenger capacity, Ceiling, rear, and side emergency exits, Lighted stop sign, Backup alarm, Block heater, Underside luggage …

Freightliner MBFME190887 Relay Intake Air Heater Co . Brand: Freightliner. Currently unavailable. We don't know when or if this item will be back in stock. Important information. To report an issue with this product, click here. Product Description . Freightliner MBFME190887 Relay Intake Air Heater Co.Freightliner Custom Chassis ... 09 Air Intake . 09–01 Air Cleaner Element Inspection and Replacement ; 13 Air Compressor . ... 83 Heater and Air Conditioner . 83–00 Safety Precautions ; 83–01 Air Conditioner Inspecting ; 83–02 HVAC Air Filter Replacing ; 88 Hood, Grille, and Cab Fenders ...2 Vehicle Access. Assist Rails and Access Steps. Entering and Exiting the Bus. Front Door Opening and Closing. Battery Access. Hood Opening and Closing. Emergency Roof Escape Hatch. Emergency Door. Emergency Window Exits.First, the heater should come on every time the key is turned to the on position. Then the Engine ECM checks the coolant and intake air temp and if they are high enough, the heater shuts off. Second, the 12volt power that operates the circuit comes from the truck, not the ECM. The most common reason for the heater not to work is a loss of power ...Truck (DD13) has been running great since. However, last week Engine light came on with the SPN 3216 FM 18 code (Inlet Nox sensor) Had a forced Regen done and off I went. 150 miles later the same code came back again. so I ignored it for another 250 miles and then second alert saying Air Intake system problem.

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%PDF-1.4 %âãÏÓ 4520 0 obj > endobj xref 4520 25 0000000016 00000 n 0000003330 00000 n 0000003476 00000 n 0000003514 00000 n 0000003737 00000 n 0000003880 00000 n 0000004524 00000 n 0000005195 00000 n 0000005234 00000 n 0000005313 00000 n 0000005390 00000 n 0000005563 00000 n 0000006101 00000 n 0000006758 …This heater is a GREAT drain on the 12 volt system. (240 amps). The heater comes on when the ignition is turned on and runs providing heat to the intake of the turbo when cold starting. Hence the "Wait to start" light on the dashboard. If you activate the start before this light goes out, you will overload the circuit and possibly the fuse will go.There can be numerous reasons/causes for this code failure. 1. Test the individual and total injector return rates now. May be damaged injector nut, tube hole, rust in threads. 2. Test the output i.e. measure the output of the lift pump and the CP3, if either are low in volume or pressure, will cause the code. 3.09 Air Intake . 09–01 Air Cleaner Element Inspection and Replacement ; 13 Air Compressor . 13–00 Safety Precautions ; 13–01 Air Compressor Inspection ; 15 Alternators and Starters . 15–00 Safety Precautions ; 15–01 Alternator, Battery, and Starter Checking ; 20 Engine Cooling/Radiator . 20–00 Safety Precautions ; 20–01 Radiator ...

A cold-air intake -- one ducted to bring air in from outside the engine bay -- won't necessarily change the sound of a car, but a short intake will. This noise can be quite pronoun...The intake heater solenoid is ground controlled from the ECM. The power supply for the relay , heater and lamp are OEM. Check the ground strap at the rear of the cylinder head to ECM. The output wire is in pin 8 in connector 1 at ECM this is the engine side. 08 Thomas EF.Shows the steps to disable those pesky intake heater lights by disabling grid heater. Remember to key off and let bus go to sleep to fully deactivate.banyon. If the grid heater was on you would see the draw on the amp meter. Keep a test light in the truck with you & when it comes on see if the grid solenoid is getting power. It should have power to one side but not to the grid itself. The intake air sensor is the one at the air cleaner.09 Air Intake . 09–01 Air Cleaner Element Inspection and Replacement ; 13 Air Compressor . 13–00 Safety Precautions ; 13–01 Air Compressor Inspection ; 15 Alternators and Starters . 15–00 Safety Precautions ; 15–01 Alternator, Battery, and Starter Connections Check ; 20 Engine Cooling/Radiator . 20–00 Safety Precautions ; 20–01 ...83.....Heater and Air Conditioner 88.....Hood, Grille, and Cab Fenders Introduction Maintenance Manual Contents I–4 108SD and 114SD Maintenance Manual, November …StealthDiesel said: The WTS start light flashing is really a big flashing warning light. Chrysler programmed that flashing light to warn the driver to shut the engine down before a failing injector trashed the engine. There are fuel system DTC codes buried somewhere in your ECM (usually P122x).Grid heater light kicked on while driving. so just got the truck with 170,000 and was perfectly fine ( dealer let me take it home for a few days). Then dealer threw in a smarty programmer he had ordered for it and i set it on level one to start with. I took it down the highway and when cruising at 70 the wts light kicked on and chimed a few times.Shows the steps to disable those pesky intake heater lights by disabling grid heater. Remember to key off and let bus go to sleep to fully deactivate.Originally posted by dsalinas1939. i may have put this up before not sure but i have this 2014 c2 and its setting a 3494 code its intake heater mechanical fault i ran down the diagnostic tree and its tellin me it have to take to dealer for next procedure the heater eliment is working fine when i turn key on i hear it click on then off i see it ...The air intake heater control helps the combustion process while starting in cold temperatures by controlling the heating elements in the engine's intake air system. The ECM controls the heating elements in two phases, pre-heat and post-heat. The amount of time that the intake air heater remains on depends on the intake manifold temperature at ...If you have power at the output, check the connections to the intake heater. I like to put an inductive ammeter onto the wire from the relay to the intake heater to confirm low power draw before removing the heater grid. In the 17 yaers of working with the Cat engines,we have only had to change 2 of the heater grids.

The intake heater solenoid is ground controlled from the ECM. The power supply for the relay , heater and lamp are OEM. Check the ground strap at the rear of the cylinder head to ECM. The output wire is in pin 8 in connector 1 at ECM this is the engine side. 08 Thomas EF.

Benefits of Solar Water Heaters - The benefits of solar water heaters are numerous. Visit HowStuffWorks to learn all the benefits of solar water heaters. Advertisement The benefits...While there are many reasons why a truck might make a beeping sound, the most common cause is a bad transmission. If the transmission is clogged or broken, the beeping will increase in volume. Other causes include: Clogged transmission. Broken transmission. Broken speedometer gears. A faulty oil pressure sensor.NOx Sensor Troubleshooting Guide - US10+OBD13 And Newer Emissions. Component Overview. There are two Nitrogen Oxide (NOx) sensors in the Exhaust Aftertreatment System, an INLET and OUTLET. They are smart sensors reporting on the DL7 (J1939-7) data link and they measure the INLET (Pre SCR) and OUTLET (Post SCR) of NOx.1. Table 1 MBE 900 Grid Heater Relay Installation Kit (P/N: A9061590004) INSTALLATION PROCEDURE. 1. Make sure that the engine is off (key OFF, engine OFF). 2. Disconnect the batteries. 3. Disconnect the electrical harness connector and …Originally posted by dsalinas1939. i may have put this up before not sure but i have this 2014 c2 and its setting a 3494 code its intake heater mechanical fault i ran down the diagnostic tree and its tellin me it have to take to dealer for next procedure the heater eliment is working fine when i turn key on i hear it click on then off i see it ...ok, attached is a pin diagram for the air heater. check all fuses with a test light for power on both sides key on. Roy. As I said, I'm not near the vehicle, so will have to try this out later. Thanks. Ask Your Own Medium and Heavy Trucks Question. Hello, the engine number is ***** Ref No is C01-00003-394.New Design Old DesignEngine Light error show heater voltage high or short in the signal circuit. Does anyone have a history with this and can show me where the relay and heater is located so I can check the wiring and Intake Air Heater location and relay.

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This discussion is proudly sponsored by: Please support our sponsors and let them know you heard about their products on iRV2. Thread Tools. 10-24-2021, 04:48 PM. BobG88. Senior Member. Join Date: Jul 2016. Location: Murfreesboro, TN. Posts: 356.EPA07 MBE 4000 OPERATOR'S MANUAL. HOT COOLANT To avoid scalding from the expulsion of hot coolant, never remove the cooling system pressure cap while the engine is at operating temperature. Wear adequate protective clothing (face shield, rubber gloves, apron, and boots). Remove the cap slowly to relieve pressure.The grid heater will take your voltage down quite a bit that's why it's a good idea to let the light go off before you try and start it, crank for 10 sec wait for 30 sec it should fire-up then. ... If my memory serves me correctly the intake heater relay is a Freightliner part and they are cheap follow the #4 cable back from the grid heater ...Mar 29, 2012 · banyon. If the grid heater was on you would see the draw on the amp meter. Keep a test light in the truck with you & when it comes on see if the grid solenoid is getting power. It should have power to one side but not to the grid itself. The intake air sensor is the one at the air cleaner. Apr 5, 2024 · Click the link above for the information. Ask Your Own Medium and Heavy Trucks Question. There’s a relay on top of the intake heater where power comes to but it isn’t sending power out the other side. Technician: Nich M. The relay should be activates by the ECM. Ask Your Own Medium and Heavy Trucks Question. When I turn my truck on the "Wait to start" light does not come on. I noticed it about a week ago and tried fixing it last weekend. ... 1999 Dodge Ram 2500 Laramie 4x4 Quad cab Automatic, Air Dog 150, S&B Cold air intake and intake elbow, MBRP 4 inch turbo back exhaust, Quadzilla Adrenaline w/ Pulse monitor, redhead steering box, …Freightliner Custom Chassis ... 09 Air Intake . 09–01 Air Cleaner Element Inspection and Replacement ; 13 Air Compressor . ... 83 Heater and Air Conditioner . 83–00 Safety Precautions ; 83–01 Air Conditioner Inspecting ; 83–02 HVAC Air Filter Replacing ; 88 Hood, Grille, and Cab Fenders ...Benefits of Solar Water Heaters - The benefits of solar water heaters are numerous. Visit HowStuffWorks to learn all the benefits of solar water heaters. Advertisement The benefits... ….

The air intake heater control helps the combustion process while starting in cold temperatures by controlling the heating elements in the engine's intake air system. The ECM controls the heating elements in two phases, pre-heat and post-heat. The amount of time that the intake air heater remains on depends on the intake manifold temperature at ...Yes, that is correct. You have to remove the intake housing from the base and visually inspect the heater element. If you locate the plug on the heater, you can verify it is getting power before removing the intake housing. If the element is getting power. The element assembly simply needs to be replaced.Test the High-Pressure Relief - This is fairly simple with an advanced scan tool. Just command the regulator up to achieve max fuel pressure. This should be somewhere around 27,500 psi. The relief valve is a calibrated mechanical spring that opens to return fuel back to the fuel filter, thus limiting max fuel pressure.The ABS light is a steady burn while cranking but once it fires it flashes for about 30 sec before going off. ... It **might** have an intake heater. It would be on the air intake pipe going in to the engine and have a couple of 2 gauge or so cables gojng to it. ... Freightliner used to bury them under there on the business class trucks. I ...Placeholder Product Name. Placeholder Product Name. $00.00. 0000-0000 Placeholder Application. The Cummins Genuine 5335502 Intake Air Cover & Heater Grid provides your 2007.5-2012 Dodge 6.7L Diesel (Cab & Chassis Only) with …EZWiring EZWiring™ makes Freightliner Custom Chassis Corporation, Freightliner, Ster-ling, Western Star, and Thomas Built Buses products’ wiring drawings and float- ... 09–03 Air Intake System Inspecting † † † † † † ††††††††††††† ... 20–03 Coolant Heater Check, Webasto Inspect the coolant heater ...Leading Solutions for Cold Starts & Emissions Reduction. Air Intake Heaters, also known as grid and manifold heaters, provide solutions for diesel applications such as On-Highway, Off-Road and Power Generation. Powered by the vehicle battery, air intake heaters provide an on-board, stand-alone cold weather starting aid without driver intervention.Recently I cleared the light to discover that the truck has been driving in limp mode for months. Truck builds way more boost pressure and seems to be getting more fuel. The light came back and it goes back into limp mode after beeping at me like 5-10 times. Checked codes and I get: P0541 Low Voltage on the #1 Intake Air Heater Relay 2 Vehicle Access. Assist Rails and Access Steps. Entering and Exiting the Bus. Front Door Opening and Closing. Battery Access. Hood Opening and Closing. Emergency Roof Escape Hatch. Emergency Door. Emergency Window Exits. Intake heater light on freightliner, Recently I cleared the light to discover that the truck has been driving in limp mode for months. Truck builds way more boost pressure and seems to be getting more fuel. The light came back and it goes back into limp mode after beeping at me like 5-10 times. Checked codes and I get: P0541 Low Voltage on the #1 Intake Air Heater Relay, New Design Old Design , Freightliner Custom Chassis ... 09 Air Intake . 09–01 Air Cleaner Element Inspection and Replacement ; 13 Air Compressor . ... 83 Heater and Air Conditioner . 83–00 Safety Precautions ; 83–01 Air Conditioner Inspection ; 83–02 HVAC Air Filter Replacement ; 88 Hood, Grille, and Cab Fenders ..., 09 Air Intake . 09–01 Air Cleaner Element Inspection and Replacement ; 13 Air Compressor . 13–00 Safety Precautions ; 13–01 Air Compressor Inspection ; 15 Alternators and Starters . 15–00 Safety Precautions ; 15–01 Alternator, Battery, and Starter Checking ; 20 Engine Cooling/Radiator . 20–00 Safety Precautions ; 20–01 Radiator ..., FREIGHTLINER M2 Heater Assembly. OEM #: A22-59312-000. SURPLUS RED DOT AUXILARY HVAC A/C HEATER ASSEMBLY FLOOR MOUNTED P/N: A22-59312-000 REPLACED BY P/N: RDH R4225 1. Create Estimate. Part Info. (541)922-6455 Request Info Enterprise Hagerman Inc. UMATILLA OR. $600.00., top trailer lights went out on 2014 M2-106 box truck . can't locate fuse for it and desperately trying to avoid a ticket while working at night. been at … read more. Associate of Applied Scienc... 2016 m2 106. Range inhibit light is on., 2007 freightliner trash truck last 6 w25979. Mercedes mbe 900. Mechanic's Assistant: Sometimes things that you think will be really complicated end up being easy to fix. The Heavy Truck Mechanic I'm going to connect you with knows all the tricks and shortcuts. Active codes for engine are pid45 fmi 3 occurring 36 times., SAF-T-LINER C2. Parts Reference Manual ( Interior ) INTRODUCTION. The Thomas Built Buses SAF-T-LINER C2 parts reference manual provides the user with a tool to assist in identifying needed replacement parts and service information for their bus. It is intended to be used as a guide to help locate service parts information that resides within ..., The Cummins air intake ( grid ) heater , is in a square block about 2 1/4" high sandwiched between the air tubing from the CAC ( Charge Air Cooler ) and the intake manifold . There are two studs on the heater , power and ground . Think of the heater as a 12 volt toaster element to warm the combustion air in the intake manifold ., I run four sets of them 2 in the head light and 2 in the fog and the never go out not when starting or grid heater 2001 Dodge 2500 quad cab , Auto, 306,xxx miles, S&B Cold Air Intake, Expandit 5 inch straight piped system, Smarty, Edge Insight CS for gauges , HID Fog Lights 8000k, HID Head Lights 4300k, Electric/Heated tow mirrors, Painted ..., Wait to Start light does not come on in the dashboard. Truck will start but is difficult especially in colder temps now. ... My question is about the air intake heater system on my 2000 Freightliner FL70 that has a Cat 3126 engine. I have had the truck since March of this year. Initially the indicator light for warming the ..., EPA07 MBE 4000 OPERATOR'S MANUAL. HOT COOLANT To avoid scalding from the expulsion of hot coolant, never remove the cooling system pressure cap while the engine is at operating temperature. Wear adequate protective clothing (face shield, rubber gloves, apron, and boots). Remove the cap slowly to relieve pressure., Electrical System General Information. The Saf-T-Liner C2 uses an electrical system where multiple electrical signals are carried along a simplified set of wires, reducing the size of wiring bundles. There are significantly fewer wires overall, meaning less chance of damage, shorts, and other problems. The information in this chapter is to help ..., 2001 Freightliner FL70, the glow plug light and the ABS light stay on all the time. Is it ok to drive? 2001 Freightliner - Answered by a verified Technician. ... The vehicle looks to be in great shape! I think the light is probably just a failed glow plug, or Intake heater. With this size of truck it might just be an intake heater but either ..., Find somewhere else to keep these household objects. In addition to using less energy, part of the appeal of tankless hot water heaters is that they take up less space than traditi..., EVERY PART YOU NEED, WHEREVER THE ROAD LEADS. From Daimler Truck North America (DTNA) Genuine Parts to quality all-makes and value-driven parts, DTNA is your one-stop shop for readily available parts solutions for trucks, trailers and buses that keep the wheels turning., I run four sets of them 2 in the head light and 2 in the fog and the never go out not when starting or grid heater 2001 Dodge 2500 quad cab , Auto, 306,xxx miles, S&B Cold Air Intake, Expandit 5 inch straight piped system, Smarty, Edge Insight CS for gauges , HID Fog Lights 8000k, HID Head Lights 4300k, Electric/Heated tow mirrors, Painted ..., Follow procedure 006-075. when the Water-In-Fuel (WIF) sensor is activated. by pouring fuel in the center hole (clean side). Recommended procedure is to install filter dry and turn the key switch on and off 3-4 times and allow the priming pump to fill the filter. If you have to pre-fill the filter, use the smaller outside holes., %PDF-1.4 %âãÏÓ 4520 0 obj > endobj xref 4520 25 0000000016 00000 n 0000003330 00000 n 0000003476 00000 n 0000003514 00000 n 0000003737 00000 n 0000003880 00000 n 0000004524 00000 n 0000005195 00000 n 0000005234 00000 n 0000005313 00000 n 0000005390 00000 n 0000005563 00000 n 0000006101 00000 n 0000006758 00000 n 0000007660 00000 n 0000008440 00000 n 0000009180 00000 n 0000009889 00000 n ... , Here are some of the best outdoor heaters for restaurants to keep your customers warm and cozy when they want to dine outdoors to enjoy a meal. If you buy something through our lin..., Mar 21, 2010. #1. Recently I disconnected my battery cables, pulled the speedometer out to look for something else and now my check engine light and engine heater light won't go out and the code it flashes is 49 which is "Inlet Air Heater Driver Fault" (open/closed circuit) or something like that. I called CAT and he said it could be anything ..., superman279. 2113 posts · Joined 2010. #17 · Jul 27, 2013. No start when cold (depending on what 'cold' is to you) is more likely injector related. As far as the grid heater light goes, check for codes with the key trick. '03 2500 QCLB 4x4 47RE One Piece Driveshaft., 11. Inspect the intake pressure/temperature sensor and wiring connector for signs of damaged, bent, spread, corroded or unseated (pushed out) pins and signs of moisture in the connector or wire damage near the connector. Is there any sign of damage present? a. Yes; repair as necessary. Go to step 16. b. No; replace intake pressure/temperature ..., Air intake restriction vacuum is measured in inches of water (inH 2 O). For vehicles equipped with a graduated indicator or a restriction gauge on the dash, check the gauge with the engine off. If the yellow signal stays locked in the red zone once the engine is shut down, or is at or above 25 inH 2 O, the air cleaner element needs to be replaced., 808 Posts. Posted - 05/30/2017 : 10:18:04 AM. I have a DT466 that we got back from the dealer . They had to do some work on the engine we installed . There were wiring issues . When we got it back the wait to start light would come on for 5 or 6 seconds and go off . A couple days later went to start the bus the wait to start light wouldn't come ..., Subscribed. 86. 49K views 8 years ago. Here I show how to diagnose a air intake heater circuit on a Cummins Isc Engine ...more. Here I show how to diagnose a …, There can be numerous reasons/causes for this code failure. 1. Test the individual and total injector return rates now. May be damaged injector nut, tube hole, rust in threads. 2. Test the output i.e. measure the output of the lift pump and the CP3, if either are low in volume or pressure, will cause the code. 3., The coolant heater was added by Freightliner/Thomas because of poor bus body heat shortly after they switched from 3126 to C7. Thomas did free retrofits on C7 equipped units that didn't have them already. ... On the older GMs with 3116s and 3126s we have there is an Intake Heater light that we wait to go out until we start it., Freightliner Custom Chassis ... 09 Air Intake . 09–01 Air Cleaner Element Inspection and Replacement ; 13 Air Compressor . ... 83 Heater and Air Conditioner . 83–00 Safety Precautions ; 83–01 Air Conditioner Inspecting ; 83–02 HVAC Air Filter Replacing ; 88 Hood, Grille, and Cab Fenders ..., Engine Light error show heater voltage high or short in the signal circuit. Does anyone have a history with this and can show me where the relay and heater is located so I can check the wiring and Intake Air Heater location and relay., On rare occasions, the Cummins Grid Heater fails and drops metal into the intake manifold causing a catastrophic engine failure. This video explains the is..., Thread Tools. 2001 Cummins 5.9 ISB 300HP What's the purpose of the inlet or intake heater? Is it used instead of glow plugs? When does it operate? If it goes inop …, Thanks for the help cat. I mention 30 seconds cause this troubleshooting guide I'm reading says 30 second cycle time over and over Troubleshooting 3114, 3116 and 3126 Engines Media Number -SENR6502-06 So, Yeah, according to this document the coolant temp, oil pressure switch, power relay, and control module are the factors to look …