1991 s10 p/u dies when warm, can't restart until it cools

20

Asked by Nov 18, 2014 at 11:31 PM about the 1991 Chevrolet S-10 STD Extended Cab 4WD SB

Question type: Maintenance & Repair

My 1991 chevy s10 dies shortly after reaching normal operating temperature.

I had initially not made the temperature connection, so replaced the fuel pump the going
it may be going out.

So far I have verified spark at the coil, when in the hot (no start) condition, and looking
into the throttle body I see the injectors pulsing out fuel. I think the pulse means the
computer thinks the motor is flooded?

I've also noticed that when cold (as in freezing) I need to give it a little gas or it will not
idle until the motorwarms up a bit. Once it gets past this point, it idles nice and smooth
until reaching normal operating temp.

I'm guessing one of the sensors or controls is misbehaving when it warms up, but I'm
having trouble guessing which one

3 Answers

jump pins a and b with a wire and read codes on dash. they give the jumper tool away at autozone

16,255

Make sure the coolant temp sensor for the computer is good. Also check the ign control module in the distributor. If you take it out and take it to a parts store they can test it

1 out of 1 people think this is helpful.
Best Answer
20

It was indeed the coolant temp sensor for the computer, I had overlooked the fact that the temp gauge is driven off a different sensor than the computer for this engine so had assumed the temp sensor was good. Thanks.

Your Answer

Add photo

Related Questions

  • why won't my chevy s10 4.3 v6 start after running it a while 17 answers

    After running my truck for awhile I shut it off and then have to wait for sometimes over an hour for it to start again I have changed the coil pickup and put ne distributor cap and rotor on it

    1991 Chevrolet S-10

    -

    Maintenance & Repair

  • 96 s10 stalling. 3 answers

    Ok so looking at getting a 96 s10.problem is,the guy says it will run for 10-15 minutes then has valve chatter and dies.after it cools off it will restart.sounds to me like it's overheating and sh...

    1996 Chevrolet S-10 2 Dr STD Standard Cab SB

    -

    Maintenance & Repair

  • My 2001 S10 has a hard starting problem if the truck sits between 1 to 4 hours. It starts fine if left over night. Has 46,000 miles. 77 answers

    Cranks for about ten seconds before it starts.

    2001 Chevrolet S-10 4 Dr LS 4WD Crew Cab SB

    -

    Maintenance & Repair

  • 94 s10 4.3 6 answers

    i have a 94 s10 4.3 and when it runs about 20 min the top radiator hose builds up alot of pressure and get so hot u can barely touch it, i put new thermostat and water pump on it but it still does the...

    1994 Chevrolet S-10 2 Dr LS Extended Cab SB

    -

    Maintenance & Repair

  • fuel system problems 3 answers

    car dies after running a while.after cools down will restart.

    1991 Chevrolet Corsica

    -

    Maintenance & Repair

S-10

Looking for a Used S-10 in your area?

CarGurus has 1,632 nationwide S-10 listings starting at $995.

ZIP:

Search Chevrolet S-10 Questions

Chevrolet S-10 Experts

#1 Andrew Olsen
Andrew Olsen
Reputation 2,060
#2 John Saffrahn
John Saffrahn
Reputation 890
#3 Trebor66
Trebor66
Reputation 880
View All

Related Models For Sale

Used Ford Ranger
225 Great Deals out of 7,010 listings starting at $1,450
Used GMC Sonoma
10 Great Deals out of 510 listings starting at $1,500
Used Ford F-150
3,436 Great Deals out of 206,231 listings starting at $1,273
Used Dodge Dakota
150 Great Deals out of 4,361 listings starting at $1,500
Used Chevrolet Blazer
1,382 listings starting at $1,699
Used GMC Sierra 1500
1,175 Great Deals out of 58,309 listings starting at $2,495
Used Chevrolet C/K 1500
3 Great Deals out of 1,058 listings starting at $1,999
Used Chevrolet Camaro
655 Great Deals out of 39,478 listings starting at $3,495

Used Cars For Sale

2004 Chevrolet S-10 For Sale
54 listings starting at $4,900
2003 Chevrolet S-10 For Sale
5 Great Deals out of 388 listings starting at $1,995
2002 Chevrolet S-10 For Sale
3 Great Deals out of 246 listings starting at $2,450
2000 Chevrolet S-10 For Sale
244 listings starting at $2,800