1995 Astro 4.3 V6 engine type w misses when hot 47,000

Tiny
SPANGLISH
  • MEMBER
  • 1995 CHEVROLET ASTRO
Its had new fuel pump distributer cap rotor plugs and leads+battery when it starts from cold its fine ticks over nice and revs ok but when get warmed up it misses when braking for a roundabout it sometimes stalls. When pull of lights it starts to miss then clears itself when traveling on motorways at 65 mph it will die you put your foot down no responce 2-3 seconds later it kicks in then flys off very strange no faults in pcm no light on in dash no chevrolet dealers in spain will touch it one put his scanner on it found nothing wrong played with egr valve it tested ok all other valves and emmision sensors all ok. BUT when cold its purfect( I think I should move to the northpole)please anybody HELP ME many thanks mark
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Saturday, October 20th, 2007 AT 5:04 PM

4 Replies

Tiny
BLACKOP555
  • EXPERT
Sounds like the throttle position sensor is bad when you put pedal down for 2-3 secs till you get response.
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Saturday, October 20th, 2007 AT 9:39 PM
Tiny
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Thanks for that I put a new tps sensor on it and still acts the same as before unreal
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Tuesday, October 30th, 2007 AT 5:54 AM
Tiny
BLACKOP555
  • EXPERT
MAF may be dirty try cleaning it also take out the intake air temp sensor IAT and clean it.
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Tuesday, October 30th, 2007 AT 8:45 AM
Tiny
SPANGLISH
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It hasnt a maf cleaned iat. Air temp sensor. Cleaned the egr valve. Cleaned map any thing else please
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Tuesday, October 30th, 2007 AT 9:13 AM

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