Engine cutting off mid drive- 91 chevy silverado 1500

Asked by himynameiscapote Jul 11, 2015 at 12:55 PM about the Chevrolet Silverado 1500

Question type: Maintenance & Repair

1991 Chevy Silverado 1500 flare side 5 speed manual tranny

Ive had the truck for just over a year now. When i first bought the truck it had a slightly rough idle. I've replaced spark plugs & wires, Heat sensor, Ignition & distributor, battery & alternator. It idles perfectly and drives much smoother than ever before but for some reason the engine sometimes cuts off mid drive and than wont turn over when i try to start it. After some time i can sometimes get her to crank up again and occasionally start.

Ive heard that it may be a burned ignition coil but after removing it and testing it, the ignition coil proved to be in working condition.

Fuel injectors have a nice even spray so i don't believe it could be fuel related but i have been wrong before.

Running out of ideas. Thinking about replacing the starter and single valve temp gauge next. please let me know if you have any suggestions. would love to get this issue solved once and for all.

-Mike

2 Answers

61,205

Did you change the 2 wire or 1 wore temp sensor. The 2 wire one is for the computer, that's the important one. The 1 wire sensor is only for the gauge. I want to make sure I understand it correctly. When it shuts off the starter won't even turn? Does it try or click? Does anything electrical work or not work?

1 people found this helpful.
70

Sounds like you have a bad distributor cap with a crack allowing spark to the block so your ecm is shutting down until the static charge goes away. Definitely sounds like a bad spark issue. Had this happen in an 88 Cherokee. Start the motor in pitck black dark at arount 2,000 rpm and search for an arc.

Your Answer:

CarGurus Experts

  • #1
    Rowefast
    Reputation
    10,510
  • #2
    John Carson
    Reputation
    9,680
  • #2
    Andrew Olsen
    Reputation
    9,680
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used GMC Sierra 1500
148 Great Deals out of 7,258 listings starting at $3,950
Used Ford F-150
321 Great Deals out of 14,968 listings starting at $1,712
Used Chevrolet Silverado 2500HD
16 Great Deals out of 1,285 listings starting at $8,995
Used RAM 1500
439 Great Deals out of 15,809 listings starting at $5,000
Used Toyota Tundra
35 Great Deals out of 1,184 listings starting at $8,500
Used Dodge RAM 1500
3 Great Deals out of 71 listings starting at $4,000
Used Chevrolet Tahoe
24 Great Deals out of 911 listings starting at $11,900
Used Toyota Tacoma
55 Great Deals out of 1,071 listings starting at $8,708
Used Chevrolet Colorado
25 Great Deals out of 1,525 listings starting at $6,800
Used GMC Sierra 2500HD
17 Great Deals out of 1,640 listings starting at $9,988
Used Ford F-250 Super Duty
24 Great Deals out of 1,204 listings starting at $7,995
Used RAM 2500
55 Great Deals out of 2,180 listings starting at $14,962
Used Chevrolet Camaro
16 Great Deals out of 307 listings starting at $10,500
Used Dodge Charger
38 Great Deals out of 645 listings starting at $4,888
Used Chevrolet Corvette
29 Great Deals out of 1,060 listings starting at $15,871

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. Content will be removed if CarGurus becomes aware that it violates our policies.