1992 Dodge Ramcharger100 5.2 L is running rough and dies

kcfiredp · 02-13-2007, 03:05 PM

I need help I have changed the spark plugs which were heavy with soot. I also changed the fuel fliter, distributer cap and rotor. The catalatic convert. has been reamed out. What can be wrong.

Tucker Oil · 03-07-2007, 08:43 AM

have you had the injectors checked? do yo let it idle a lot or run at low rpm's? I would try running some injector cleaner through it and run it.

4x4-4ever · 03-12-2007, 09:34 AM

Did problem happen gradually or overnight? I ask 'cause I had same symptoms on my '96 5.2 and it happened over a weekend. Problem was bad sensor telling computer engine was running to lean so comp kept "richening" up fuel mixture till it wouldn't idle or run smooth and plugs were thick with soot. Don't know if 92 has same setup, but the sensor was on driver side.

TAIMAK · 06-06-2007, 12:53 PM

Quote:

Originally Posted by 4x4-4ever

Did problem happen gradually or overnight? I ask 'cause I had same symptoms on my '96 5.2 and it happened over a weekend. Problem was bad sensor telling computer engine was running to lean so comp kept "richening" up fuel mixture till it wouldn't idle or run smooth and plugs were thick with soot. Don't know if 92 has same setup, but the sensor was on driver side.

What sensor was it that caused you your problems. I have the same problem with my 95 dodge van. Thanks in advance.

75K30 · 06-06-2007, 12:58 PM

O2 sensors. If they do not reach temp, or are bad, they will only produce very little voltage an run full rich. It may never go into "closed loop" and stay full rich. Gonna need a decent multi meter to check. Should get a check engine light, but have seen some never trip a single light. Also have seen the bulb in the dash burnt out, so you may never see a light.

scottie · 06-06-2007, 08:18 PM

EGR valve?? thats my 2 cents

greasemonkey · 06-25-2007, 04:06 AM

I had a 78' with a 1991 318' FI. It may be a vacuum leak at the throttle body, intake manifold or vacuum hoses.

02-13-2007, 03:05 PM	#1
kcfiredp Junior Member Join Date: Feb 2007 Posts: 1	1992 Dodge Ramcharger100 5.2 L is running rough and dies I need help I have changed the spark plugs which were heavy with soot. I also changed the fuel fliter, distributer cap and rotor. The catalatic convert. has been reamed out. What can be wrong.

03-07-2007, 08:43 AM	#2
Tucker Oil Senior Member Join Date: Mar 2007 Posts: 50	have you had the injectors checked? do yo let it idle a lot or run at low rpm's? I would try running some injector cleaner through it and run it. __________________ 2000 dodge 3500 w/cummins turbo diesel, suncaost tranny, hrvp44, 110 hp injectors, AFE intake, mbrp 5", and Amsoil through out!! www.lubedealer.com/btucker mods thanks to www.dieselnut.com

06-06-2007, 08:18 PM	#6
scottie Senior Member Join Date: Jan 2006 Location: South Florida (Palm Beach), originally from south of BOSTON Posts: 644	EGR valve?? thats my 2 cents __________________ im a straight shooter with upper management written all over me

06-25-2007, 04:06 AM	#7
greasemonkey Senior Member Join Date: Jun 2007 Location: Central Pennsylvania Posts: 618	I had a 78' with a 1991 318' FI. It may be a vacuum leak at the throttle body, intake manifold or vacuum hoses. __________________ Tractors are like watermelon, you keep the red and throw away the green."

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03-12-2007, 09:34 AM	#3
4x4-4ever Junior Member Join Date: Feb 2007 Posts: 2	Did problem happen gradually or overnight? I ask 'cause I had same symptoms on my '96 5.2 and it happened over a weekend. Problem was bad sensor telling computer engine was running to lean so comp kept "richening" up fuel mixture till it wouldn't idle or run smooth and plugs were thick with soot. Don't know if 92 has same setup, but the sensor was on driver side.

06-06-2007, 12:58 PM	#5
75K30 Senior Member Join Date: Jul 2006 Posts: 2,992	O2 sensors. If they do not reach temp, or are bad, they will only produce very little voltage an run full rich. It may never go into "closed loop" and stay full rich. Gonna need a decent multi meter to check. Should get a check engine light, but have seen some never trip a single light. Also have seen the bulb in the dash burnt out, so you may never see a light.