92 Ramcharger no start issue
#2416929
12/11/17 07:52 PM
12/11/17 07:52 PM
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Joined: Apr 2004
Posts: 1,307 Beertown, WI
Slingshot
OP
pro stock
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OP
pro stock
Joined: Apr 2004
Posts: 1,307
Beertown, WI
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Here's the issue. 1992 Ramcharger 318 magnum-started fine all year until late October. Replaced fuel pump since the the cheap discount one I put in 2 years ago seemed to stop working after I ran the tank down. Still minimal fuel pressure at the rail. Started, but ran on 2 cylinders (it felt like). Gave it a tune up since the plugs were fouled(plugs, wires, cap rotor). Still won't start right. FuEl pump relay clicking on and off continuously-if I pump gas and hold the pedal down 1/4 it will eventually fire on a couple cylinders, and usually smooth out after a while. Afraid to run it since it died while on a test drive. Replaced fuel pump, asd and fuEl pump relays, distributor pickup, plugs, wires, cap, rotor, and ignition coil. Where is the parasitic draw that is kicking that relay? What am I missing? I'm going nuts with this since I have to park it on the street and don't have place to store it yet.
Any gurus out there that may know something about electronic issues with theseveral old bombers? I have about 240,000 miles on it so far.
Do you angle park in a parallel universe? NHRA Division 3 Announcer Great Lakes Dragaway DJ-Saturday Morning Cartunes/The Gearhead Show 6-9a.m. Saturday mornings WMSE Milwaukee 91.7fm www.wmse.org
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Re: 92 Ramcharger no start issue
[Re: jerseybud]
#2417776
12/13/17 03:16 AM
12/13/17 03:16 AM
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Joined: Apr 2005
Posts: 673 Emmett, Idaho
SuperStockWagon
mopar
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mopar
Joined: Apr 2005
Posts: 673
Emmett, Idaho
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Had one doing the same thing you're describing..it was the ECM.
NHRA Stock/SuperStock Class Racing..Engineered Muscle In Motion!
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Re: 92 Ramcharger no start issue
[Re: jerseybud]
#2418734
12/14/17 10:51 PM
12/14/17 10:51 PM
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Joined: Apr 2004
Posts: 1,307 Beertown, WI
Slingshot
OP
pro stock
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OP
pro stock
Joined: Apr 2004
Posts: 1,307
Beertown, WI
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The check engine light doesn't come on until after I crank it a whole bunch. Dunno if on-off of the ignition switch helps or not, but eventually the light lights up and flickers with the rapidly actuating relay. I hold the pedal down about 1/2, keep cranking, and eventually it starts, sounds like it's firing on 1 cylinder, and during each firing event, the check engine light goes on and off. Eventually it smooths out, the light stays off, and it runs fine, although it idles a little low. Craziest crap I've ever seen. Sounds like an ECM?
Do you angle park in a parallel universe? NHRA Division 3 Announcer Great Lakes Dragaway DJ-Saturday Morning Cartunes/The Gearhead Show 6-9a.m. Saturday mornings WMSE Milwaukee 91.7fm www.wmse.org
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Re: 92 Ramcharger no start issue
[Re: SuperStockWagon]
#2418735
12/14/17 10:52 PM
12/14/17 10:52 PM
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Joined: Apr 2004
Posts: 1,307 Beertown, WI
Slingshot
OP
pro stock
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OP
pro stock
Joined: Apr 2004
Posts: 1,307
Beertown, WI
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And a big thank you to everyone who replied! It all helps!
Do you angle park in a parallel universe? NHRA Division 3 Announcer Great Lakes Dragaway DJ-Saturday Morning Cartunes/The Gearhead Show 6-9a.m. Saturday mornings WMSE Milwaukee 91.7fm www.wmse.org
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Re: 92 Ramcharger no start issue
[Re: Slingshot]
#2418915
12/15/17 11:17 AM
12/15/17 11:17 AM
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Joined: Apr 2004
Posts: 684 Maine
jerseybud
mopar
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mopar
Joined: Apr 2004
Posts: 684
Maine
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Textbook for bad capacitor in ECM. need to fix it or replace or use a hair dryer to warm it every day. Model years are 92-93 with 5.2. Can run 94-95 but it wont run right.
Somewhere on the net is instructions of how to fix it on a jeep site. not for the faint of heart or those who struggle with precise soldering
Last edited by jerseybud; 12/15/17 11:18 AM.
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