Won't start

rtrana
0

Asked by Feb 25, 2013 at 12:32 PM about the 1998 Dodge Ram 2500

Question type: Maintenance & Repair

98 Dodge ram 3/4 ton diesel. when the key is in the ignition -not on- the fuel pump runs and tbe wait to start light comes on, will not start. Tried jump starting.

6 Answers

James Ramond
17,685

something not right, nothing till turned to on should be,then wait light ,try the on position that fires the glows not in off position. and the light for glowplugs is just a indicater it dont know if glows are shot or not, test light them

3 out of 3 people think this is helpful.
Clay Taylor
345

Is this a 98 12 valve truck, or a 98.5 24 Valve truck? You're saying when you insert the key into the ignition without turning it at all the fuel pump is running and the wait to start light is on?

1 out of 1 people think this is helpful.
Michael Tutty
7,495

It sounds like you are putting the key in, and turning it to the 'RUN' position, where the glow plugs would normally be turned on. You hear the pump running continuously, but it won't start. If I am right, this sounds like one of the pumps is not working. I believe you have 2 separate pumps. One in the tank, and then a second, lifter pump, external. If the tank pump is not working the lifter pump does not have a proper supply of fuel. If it is the lifter pump, the tank pump cannot produce enough pressure to start the truck. You could also have a bum regulator. I believe on that system that there is a pressure switch that illuminates the wait light if there is insufficient pressure to start the truck.

1 out of 1 people think this is helpful.
Clay Taylor
345

There is no fuel pump in the tank. That didn't start until 2005. There is a lift pump mounted on the side of the engine block and an injection pump mounted on the front gear cover and driven by the camshaft. The wait to start light has nothing to do with fuel pressure. It is controlled by the PCM and determines how long to run the grid heater based off of coolant temperature. The colder it is, the longer it cycles the grid heater. The first thing I would check is if you are actually getting fuel. Just because the lift pump comes on doesn't mean it's working sufficiently. The easiest way to do this is pull the lid off of your fuel filter housing and make sure it is full. If it's not then cycle your key on and see if fuel sprays into the housing. If it's full then I would try to bleed the system out and see if it will start. Loosen the injector lines at the head and crank it. See if fuel comes out and if it tries to start. If you have fuel coming out and it tries to start then tighten up the fuel lines. It should take off and run rough until all the air is out of the system and then clear up. If it's getting fuel through the fuel filter housing but not through the lines then you'll probably be looking at an injection pump problem. If it does start after bleeding the lines then you either have an internal injection pump issue not holding pressure or a faulty lift pump losing prime. More info would be helpful, but good luck with it.

8 out of 8 people think this is helpful.
Jeremy Lindeman
465

7jimmy7: The Cummins dont have glow plugs. They have a grid heater

1 out of 1 people think this is helpful.
James Ramond
17,685

same function same principle,

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

Ram 2500

Looking for a Used Ram 2500 in your area?

CarGurus has 5,495 nationwide Ram 2500 listings starting at $3,499.

ZIP:

Search Dodge Ram 2500 Questions

Dodge Ram 2500 Experts

#1 Dan Connell
Dan Connell
Reputation 1,850
#2 Ram2500Diesel
Ram2500Diesel
Reputation 440
#3 AJBurns
AJBurns
Reputation 400
View All

Related Models For Sale

Used Dodge Ram 3500"
92 Great Deals out of 2,438 listings starting at $3,000
Used Ford F-250 Super Duty"
375 Great Deals out of 41,363 listings starting at $2,495
Used Dodge Ram 1500"
516 Great Deals out of 13,149 listings starting at $1,900
Used Ford F-150"
2,435 Great Deals out of 194,381 listings starting at $1,500
Used Ford F-350 Super Duty"
439 Great Deals out of 27,595 listings starting at $3,395
Used Ford F-250"
592 listings starting at $3,495
Used Chevrolet Silverado 1500"
1,885 Great Deals out of 126,568 listings starting at $1,999
Used Chevrolet Silverado 2500"
9 Great Deals out of 286 listings starting at $3,290
Used GMC Sierra 1500"
760 Great Deals out of 49,176 listings starting at $995

Used Cars For Sale

2010 Dodge Ram 2500 For Sale
14 Great Deals out of 332 listings starting at $8,900
2009 Dodge Ram 2500 For Sale
21 Great Deals out of 331 listings starting at $9,500
2008 Dodge Ram 2500 For Sale
26 Great Deals out of 632 listings starting at $6,900
2007 Dodge Ram 2500 For Sale
17 Great Deals out of 765 listings starting at $8,999
2006 Dodge Ram 2500 For Sale
28 Great Deals out of 1,203 listings starting at $5,900