99 chevy silverado 5.3 engine

Asked by Jan 06, 2015 at 12:33 PM about the 1999 Chevrolet Silverado 1500 3 Dr STD Extended Cab SB

Question type: Maintenance & Repair

motor will rev up high and then will almost die and it will do this only when you start it for
the first time when its cold out .we have tested egr valve is good,cleaned mass air flow
sensor,replaced idle air sensor and it still does it and ideas?air filter is new

3 Answers

it could be a few things. 1) is you check engine light on? if so what are the codes? 2) check your fuel pressure. it should be 55-58psi with key in the on position but engine off. these truck are notorious for fuel pumps going out. when you turn you key to the on position can you hear the fuel pump kick on? 3) check for intake manifold leaks. also a common problem with this truck. with your motor running, spray some intake cleaner($1.97 at walmart) around the intake area of the engine. IN SHORT BURSTS OF SPRAY!!! if your engine revs after you spray around you have a leak. I attached a picture of your intake... just in case you didn't know what im talking about I have the same truck and have faced the same issues feel free to email me lucas.a.bradshaw@lmco.com

2000 Chevy Silverado was running great when all of a sudden it just died on me abruptly what could be problem

I'm thinking maybe vacuum lines

Your Answer

Silverado 1500

Looking for a Used Silverado 1500 in your area?

CarGurus has 156,974 nationwide Silverado 1500 listings starting at $1,000.


Chevrolet Silverado 1500 Experts

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

Related Models For Sale

Used GMC Sierra 1500
1,131 Great Deals out of 61,554 listings starting at $1,295
Used Ford F-150
3,017 Great Deals out of 230,435 listings starting at $1,300
Used Dodge Ram 1500
320 Great Deals out of 10,756 listings starting at $1,988
Used Toyota Tundra
622 Great Deals out of 35,972 listings starting at $1,500
Used Toyota Tacoma
566 Great Deals out of 40,725 listings starting at $2,500
Used Chevrolet Tahoe
817 Great Deals out of 39,940 listings starting at $1,900
Used Ford F-250 Super Duty
437 Great Deals out of 47,536 listings starting at $695
Used Chevrolet Camaro
378 Great Deals out of 31,273 listings starting at $3,495
Used Ford Mustang
344 Great Deals out of 42,031 listings starting at $1,488

Used Cars For Sale

2018 Chevrolet Silverado 1500 For Sale
5 Great Deals out of 84,294 listings starting at $19,417
2017 Chevrolet Silverado 1500 For Sale
239 Great Deals out of 14,242 listings starting at $16,439
2016 Chevrolet Silverado 1500 For Sale
280 Great Deals out of 6,993 listings starting at $16,777
2015 Chevrolet Silverado 1500 For Sale
443 Great Deals out of 11,320 listings starting at $12,999
2014 Chevrolet Silverado 1500 For Sale
460 Great Deals out of 10,410 listings starting at $8,950

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.