91 Chevy Silverado idles but doesn't stay on

Asked by Apr 20, 2016 at 03:41 PM about the Chevrolet Silverado 1500

Question type: Maintenance & Repair

I've been working on my 1991 Chevy Silverado
1500 and I've replaced the fuel pump, fuel pump
relay, along with the filter. Yet it only idles when I put
gas into the throttle body and doesn't stay running.
What could be the problem? And how would I fix it?

4 Answers


I'd replace a few sensors...the IAT sensor on the plenum is responsible for measuring the outside air temperature and adjusts the mix~ http://www.summitracing.com/parts/dfp- ts10077? seid=srese1&gclid=Cj0KEQjw0dy4BRCuuL_e5MeqmNABEiQAq8 iNI_p_6GyIkbqkLZ1IfO8nH6SEIPZMq8yiYekfInxirqMaAksw8P8HA Q


linx do not work...try one of these~ https://www.google.com/? gws_rd=ssl#q=91+chevy+silverado+iat+sensor

That was one of the 1st things I did when I put in a new fuel pump.


PCV elbow?

Your Answer

Silverado 1500

Looking for a Used Silverado 1500 in your area?

CarGurus has 148,970 nationwide Silverado 1500 listings starting at $828.


Chevrolet Silverado 1500 Experts

  • #1
    John Carson
  • #2
  • #3
    Andrew Olsen
View All

Related Models For Sale

Used GMC Sierra 1500
722 Great Deals out of 58,462 listings starting at $1,900
Used Ford F-150
2,344 Great Deals out of 215,477 listings starting at $1,300
Used Chevrolet Silverado 2500HD
361 Great Deals out of 29,859 listings starting at $2,500
Used Dodge Ram 1500
316 Great Deals out of 9,549 listings starting at $800
Used Toyota Tundra
478 Great Deals out of 38,526 listings starting at $1,999
Used Ram 1500
901 Great Deals out of 119,059 listings starting at $5,995
Used Toyota Tacoma
439 Great Deals out of 44,078 listings starting at $1,995
Used Chevrolet Tahoe
528 Great Deals out of 36,655 listings starting at $1,375
Used Chevrolet Colorado
295 Great Deals out of 41,682 listings starting at $1,900
Used Ford F-250 Super Duty
374 Great Deals out of 42,218 listings starting at $1,600
Used Chevrolet Camaro
224 Great Deals out of 28,922 listings starting at $3,900
Used GMC Sierra 2500HD
142 Great Deals out of 15,260 listings starting at $3,500
Used Ford Mustang
270 Great Deals out of 37,082 listings starting at $2,150
Used Chevrolet Silverado 2500
3 Great Deals out of 212 listings starting at $4,495
Used Jeep Grand Cherokee
831 Great Deals out of 75,648 listings starting at $899

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.