Problem running after 15 to 20 min after wormed up.

KENLYLE

MEMBER
1996 DODGE VAN
5.2L
V8
2WD
AUTOMATIC
96,865 MILES

Engine will start and run great can even throttle it until after about 15 to 20 min, will starts run rough and then staling out cant even accelerate will shut off. After letting it cool back down it starts the prose's all over again.
This started with a po171 code. Haven't and cant fine a vac leak.
Replaced and vac lines that where in rough shape I have replaced all sensor, and PCM it has been reprogrammed for this van, new wires, cap button, camshaft sensor, crank sensor oil sensor heat sensor any and all sensor on this engine and also a new cat, new intake gasket set, new fuel pump and filter, cant see or find any fuel leaks.
Van had not been driven bye past owner no more the 2 miles from last inspection 2012-2013, I put around 55miles from Aug 2013 t0 Jan 2014 before this started. Any Ideas would be great.

4 Replies

HMAC300

MECHANIC
48,601 POSTS

Check fuelpressure with a gauge autparts rent it.

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Monday, March 17th, 2014 AT 10:15 AM

KENLYLE

MEMBER
3 POSTS

I've done that, fuel pressure is correct. I have almost all tools.

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Monday, March 17th, 2014 AT 11:01 AM

HMAC300

MECHANIC
48,601 POSTS

When it stalls out do the wiggle test on thecrank sensor harness if it starts the harness may be bad.I fyou still have it you have ot have 1/4 tank of gas in car if it ran out or it will set, then check plug wires, coil coolant temp sensor and O2 sensor before converter. It can also be an injector if fuelpressurew are correct which should be 44-54 with key on an dpump activated by scan tool. Out of these limits will set the code. Also mearuser resistance at crank sensor between b and c if any resistance replace it.

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