Engine cutting off mid drive- 91 chevy silverado 1500

Asked by 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

16,255

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?

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

Add photo

Related Questions

Search Chevrolet Silverado 1500 Questions

Chevrolet Silverado 1500 Experts

#1 John Carson
John Carson
Reputation 1,660
#2 Silverado_owner_2006
Silverado_owner_2006
Reputation 1,440
#3 tenspeed
tenspeed
Reputation 1,350
View All

Related Models For Sale

Used GMC Sierra 1500
1,197 Great Deals out of 58,874 listings starting at $2,495
Used Ford F-150
3,492 Great Deals out of 207,570 listings starting at $1,273
Used Dodge Ram 1500
547 Great Deals out of 13,073 listings starting at $1,800
Used Chevrolet Silverado 2500HD
388 Great Deals out of 28,812 listings starting at $2,295
Used Toyota Tundra
699 Great Deals out of 28,803 listings starting at $2,500
Used Chevrolet Tahoe
1,086 Great Deals out of 32,099 listings starting at $1,495
Used Toyota Tacoma
805 Great Deals out of 34,292 listings starting at $2,988
Used Ram 1500
1,466 Great Deals out of 117,364 listings starting at $6,999
Used Chevrolet Colorado
339 Great Deals out of 17,226 listings starting at $2,195
Used Ford F-250 Super Duty
451 Great Deals out of 43,257 listings starting at $2,995
Used Chevrolet Camaro
631 Great Deals out of 39,687 listings starting at $2,995
Used Chevrolet Silverado 1500HD
17 Great Deals out of 293 listings starting at $4,938
Used Chevrolet Silverado 2500
6 Great Deals out of 267 listings starting at $4,200
Used GMC Sierra 2500HD
140 Great Deals out of 13,625 listings starting at $1,500
Used Dodge Ram 2500
179 Great Deals out of 5,708 listings starting at $2,900