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1995 Chevrolet S-10 CA Edition
Problem for Chevrolet 1995 S-10 CA Edition

1995 chevy 4.3 runs smooth but idles rough during




By jr6837 on Oct 16, 2009

" "
1995 chevy 4.3 runs smooth but idles rough during long stops i have replaced the iac egr syder fuel filter plugs wire cap fuel pressure 55 replcaed vaccum lines dont hear any leaks replaced air temp sensorthe van runs very smooth as long as your going at long lights or just periods of idle in park it wants to die this problem has challenged all of my auto repair knowlegde and i feel like i hit a wall any help would be greatly appreciated
Comments:

Oct 21, 2009

- thanks ive already done the injector but not the nut kit its weird because it doesnt do it all the time yesterday it ran for 20 minsand nothing today it idles like garbage im not giving up something cant be right i just have to fiqure it out thanks

Oct 25, 2009

- yesterdayi went ahead and put in a tps sensor after this didnt change anything i proceeded to check the pump because it would only hold 50-60 while running when it first primed at 60 then would drop to 20 right away never had a starting issue though well after all this work pressure hold fine now but i still have a miss i quess i ll just have to keep trying to work on it i also looked over thenut kit lines isde the pelum and they were fine ill get it someday unless anyone has any suggestions

Solution #1

posted on Oct 17, 2009
Somewhat Helpful)

6bta

Rank: Guru  Chevrolet Cars  Expert
Rating: 91%, 128 votes
The famouse spider injector will cause just what you are discribing. The cpi motor has it's share of problems.
To me it sounds like that is the problem. There are ways to test it but you need a scan tool to be able to look at information in the pcm.
If you go ahead and do the injector I would Highly recomend doing the lines inside of the intake along with the injector. Gm calls it a Nut kit(i have no idea why there are no nuts on the lines) I don't know if that will be available in the aftermarket world.

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