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 149,639 nationwide Silverado 1500 listings starting at $444.


Chevrolet Silverado 1500 Experts

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

Related Models For Sale

Used GMC Sierra 1500
720 Great Deals out of 58,939 listings starting at $1,995
Used Ford F-150
2,334 Great Deals out of 215,121 listings starting at $1,300
Used Dodge Ram 1500
316 Great Deals out of 9,546 listings starting at $1,750
Used Toyota Tundra
482 Great Deals out of 38,777 listings starting at $1,999
Used Toyota Tacoma
412 Great Deals out of 44,883 listings starting at $1,995
Used Chevrolet Tahoe
551 Great Deals out of 36,694 listings starting at $1,299
Used Chevrolet Camaro
241 Great Deals out of 28,842 listings starting at $1,800
Used Ford F-250 Super Duty
371 Great Deals out of 41,797 listings starting at $1,600
Used Chevrolet Silverado 2500
202 listings starting at $4,495
Used Ford Mustang
256 Great Deals out of 36,837 listings starting at $2,500

Used Cars For Sale

2018 Chevrolet Silverado 1500 For Sale
78 Great Deals out of 91,176 listings starting at $18,998
2017 Chevrolet Silverado 1500 For Sale
133 Great Deals out of 9,422 listings starting at $16,995
2016 Chevrolet Silverado 1500 For Sale
183 Great Deals out of 6,507 listings starting at $13,950
2015 Chevrolet Silverado 1500 For Sale
228 Great Deals out of 9,962 listings starting at $10,995

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.