1993 Chevy S-10 Dies and wont fire back up hot

Tiny
MRCURTIS.27
  • MEMBER
  • 1993 CHEVROLET S-10
  • 6 CYL
  • 2WD
  • MANUAL
  • 270,000 MILES
My s10 stalls and wont fire back up once its running hot. Ive been kind of guessing what the problems are, and i've tried changing the fuel filter and fuel pump. Neither of these cleared up the problem. While I was continuously trying to drive my truck, the alternater siezed, causing my belt to snap, im not sure if that was related. I also checked out my spark plugs and wiring, and everythings ok there. Just recently a code came up, and hasnt appeared before, that says "MAP sensor signal voltage low " but im not sure if this is whats causing the problem. Please help to point me in the right direction!
Tuesday, September 29th, 2009 AT 8:11 PM

8 Replies

Tiny
RACEFAN966
  • MECHANIC
  • 5,029 POSTS
Sounds like a coil problem. The coil gets warm and shuts down, let it cool it comes back. Now if you have a digital multi meter we can test it when it gets warm and shuts down. Let me know if you have a meter and are ok with doing some testing.
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Thursday, October 1st, 2009 AT 10:21 AM
Tiny
MRCURTIS.27
  • MEMBER
  • 5 POSTS
Sorry about the delay, but ive gotten my hands on a multimeter and can definately do some testing now!
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Wednesday, October 7th, 2009 AT 1:29 PM
Tiny
RACEFAN966
  • MECHANIC
  • 5,029 POSTS
Ok I have included a pic below for you to follow on how to hook up the meter to do the tests on the coil. First you must disconnect the coil by unplugging it and disconnecting the coil wire for the test, no need to unbolt it from the engine. In test A use the highest scale of resistance as the resistance should be very high or near infinite. Test B use a low scale as it should be very low resistance or near zero. Test C use a the higher scale and check for continuity if there is no continuity here then coil is bad. If any of the other tests come out bad then replace coil. Let me know what you find and we will take it from there.


https://www.2carpros.com/forum/automotive_pictures/249564_Graphic_139.jpg

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Thursday, October 8th, 2009 AT 10:09 AM
Tiny
MRCURTIS.27
  • MEMBER
  • 5 POSTS
Alright, I did the testing adfound that there was no continuity in test C, and something else was wrong so I replaced the coil. The problem still remained though, as soon as it got hot, it stalled.
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Thursday, October 8th, 2009 AT 5:25 PM
Tiny
RACEFAN966
  • MECHANIC
  • 5,029 POSTS
Ok can you tell me when it stalls do you still have spark? I would like to check the module and spark control and pickup coil if you don't have spark. Let me know so we can go from there.
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Friday, October 9th, 2009 AT 9:50 AM
Tiny
MRCURTIS.27
  • MEMBER
  • 5 POSTS
Alright there is definately spark when it stalls
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Thursday, October 15th, 2009 AT 4:57 PM
Tiny
RACEFAN966
  • MECHANIC
  • 5,029 POSTS
Ok this tells me that it must have something to do with fuel. Now when it stalls if you I would like you to have a timing light and hook it up and have some one crank it over and with the air cleaner off point it at the injectors and look for a spray of fuel. Let me kwow what you find.
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Friday, October 16th, 2009 AT 9:50 AM
Tiny
MRCURTIS.27
  • MEMBER
  • 5 POSTS
Alright, are u ready for this! My buddies been telling me to take it to this shop and get it on their computer to see whats wrong. I dont have a timing light, so I figured now was the time. Took it down today. He runs it, it gets hot, stalls, he told me he looked for spray from the injecters, there was nothing. He said he didnt do anything else, but went back to the key, tried to fire it up, and it did. It hasn't stalled since. There was no codes he got from the truck. I drove it home and its running fine with a slightly lower idle. The only thing he suggested was ignition module? Im interested to hear your input
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Wednesday, October 21st, 2009 AT 7:27 PM

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