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

4 Answers

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

19,535

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 of 1 people found this helpful.
Best Answer Mark helpful
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.

Had the same problem but mine WAS the ignition control module.

Your Answer

S-10

Looking for a Used S-10 in your area?

CarGurus has 1,251 nationwide S-10 listings starting at $1,600.

ZIP:

Chevrolet S-10 Experts

  • #1
    Andrew Olsen
    Reputation
    2,450
  • #2
    John Saffrahn
    Reputation
    1,040
  • #3
    Trebor66
    Reputation
    1,030
View All

Related Models For Sale

Used Ford Ranger
146 Great Deals out of 5,428 listings starting at $800
Used GMC Sonoma
5 Great Deals out of 409 listings starting at $2,200
Used Ford F-150
2,576 Great Deals out of 199,184 listings starting at $1,300
Used Dodge Dakota
88 Great Deals out of 3,679 listings starting at $1,750
Used Chevrolet Blazer
3 Great Deals out of 1,071 listings starting at $950
Used GMC Sierra 1500
1,014 Great Deals out of 66,358 listings starting at $2,495
Used Chevrolet Camaro
446 Great Deals out of 30,843 listings starting at $1,450
Used Chevrolet C/K 1500
881 listings starting at $1,900

Used Cars For Sale

2004 Chevrolet S-10 For Sale
4 Great Deals out of 58 listings starting at $2,900
2003 Chevrolet S-10 For Sale
8 Great Deals out of 306 listings starting at $1,600
2002 Chevrolet S-10 For Sale
4 Great Deals out of 209 listings starting at $2,000
2001 Chevrolet S-10 For Sale
3 Great Deals out of 149 listings starting at $1,995
2000 Chevrolet S-10 For Sale
183 listings starting at $2,750

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.