Question about 2002 Dodge Ram 3500 Truck

Open Question

2003 Dodge diesel runs funny

My truck sounds like the idle is pulsing up and down when but only when it's ilding. The RPM guage doesn't move though so it's probably not the idle. I have replaced the fuel (lift) pump and fuel filter. When i tow something or drive it really hard then it stops for few days but then when i take it easy for a while it starts doing it again. Anyone have any ideas?

Posted by on

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

Ad
  • 512 Answers

SOURCE: 2003 Dodge Ram 2500 Cummins Diesel

there is a technical service bulletin to relocate the fuel pump on this vehicle when the transfer pump needs replaced. there is the possibility the transfer pump is going bad on the 2003 now...its not good to run them low or out of fuel

Posted on Dec 23, 2008

Ad
BCally1
  • 133 Answers

SOURCE: 2004 Dodge Ram 2500 Diesel

do you still have the old style lift pump. located on the fuel filter housing or has it already been updated to in tank style. sounds like that to me. i've done a ton of them. chrysler has a whole conversion kit for this mod

Posted on Jan 09, 2009

okmayrant
  • 1 Answer

SOURCE: 2004 dodge ram 2500 5.9 diesel hard to start

The lift pump is bad Check the fuel pressure with a test gauge.

Posted on May 10, 2009

fingaz22
  • 1068 Answers

SOURCE: Where is Fuel Relay for 2004 Dodge Ram 3500 Diesel Truck

it doesn't have a fuel pump relay it has a fuel pump control unit and it is located on the chassis back quarter drivers side near the tube cross member for chassis on top of chassis rail near bed mount. locate the rear springs front perch and it will be above that on top of rail.

hope this helps. good luck and please ask any question you have.

Posted on Oct 25, 2009

Testimonial: "Thanx for info..no wonder I couldn't find Relay! "

Mustgo
  • 2359 Answers

SOURCE: p1689

Get a can of CRC Mass Air Flow sensor or Electronic Parts cleaner.

Disconnect the connector for the Injector Pump and clean out the contacts.

Use a small needle nose to PUSH the contacts into the connector.

Use the reset of the can to clean out other electrical connector.

Use OBDII scanner or disconnect negative battery cable to reset code.


Posted on Dec 03, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

My 1991 Chevy s-10 rear wheel drive 4 cylinder has had problems staying on. Every time i turn it on i have to press the gas pedal all the way down for it to stay on and even though it stays on for a bit it...


That year S-10 had a lot of caburator problems and vaccum leaks . Check vaccum leak's first then Check you ilde control curcuit inside the caburator the idle jets may be clogged you also have a idle control set screw that can be adjusted to set the idle higher.

May 10, 2011 | 1991 Chevrolet S-10

1 Answer

1998 Dodge Neon. At low speed or idling, the headlights pulse. They seem to pulse in time to the idling of the engine.


You need to check the amperage output of your alternator. Sounds like it is either too low of rpm`s from your engine or your alternator/regulator is going bad.

May 05, 2011 | Dodge Neon Cars & Trucks

1 Answer

When starting,Idle over a 1000 rpm


could be a ilde air controll valve sticking or gummed up

May 16, 2010 | 1988 Dodge D-Series Pickups

1 Answer

Temp guage inside truck pulses..and outside temp is going crazy...truck is idleing up and down at idle


For the pulsing temp gauge: Check Coolant Temperature Sensor located near the Thermostat.
After this is change - recheck idle.
If still rough on idle, check the Idle Sensor.

Jan 08, 2010 | 2000 Dodge Ram 3500

1 Answer

98 chev 5.7 #3and#6 clys are missing at ilde to about 2500 rpm


I would test for a leaking intake manifold gasket. WITH A WATER SPRAYER , and the engine running at operating temps and at idle, spray some water where the intake meets the cylinder head. If you hear a little SUCKING SOUND, and the engine smooths out temporarily, thats it Hope this helps

Apr 12, 2009 | 1998 Chevrolet K2500

1 Answer

2002 duramax will heat up underload but not at idle any ideas why


No diesel I have ever owned will heat up to operating temp while idling. I have had semi's and dump truck and a Dodge with a Cummings turbo diesel. If you don't idle a diesel up to around 1200 rpm while sitting the combustion chamber temperature will drop because the diesel does not ignite fully at low rpm. You may also notice after an extended period of idling 1/2 hour or more that when you pull away the exhaust will be whitish blue because of the unburnt diesel fuel sitting on top of the rings. Also extended low idle will wash down the cylinder walls with unburnt diesel and remove the oil from lubricating the cylinders and rings. Hope this helps you understand why your diesel won't heat up while idling. Mike

Jan 06, 2009 | 2002 GMC Sierra

3 Answers

Runing high rpm while in idle


First check for a loose hose or a vacuum leak. If you do not find a leak most likely the throttle position sensor is stuck and causing the truck to idle high. The throttle position sensor sticks, and if this happens you will need to replace it.

Aug 24, 2008 | 2003 Dodge Durango

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

45 people viewed this question

Ask a Question

Usually answered in minutes!

Top Dodge Experts

yadayada
yadayada

Level 3 Expert

78267 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

Are you a Dodge Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...