Truck will only crank if given gas if you stop given it has it goes dead

Asked by GuruT5KD Apr 02, 2017 at 01:28 PM about the 1999 Chevrolet Silverado 1500 Extended Cab LB RWD

Question type: Maintenance & Repair

Have replaced the fuel pump,fuel filter,plugs,and
check the mass air flow anyone have any idea
what might cause it to do this ???

1 Answer

223,915

Probably the spider injection. A fuel pressure test would need to be done by hooking up a fuel pressure gauge to the Schrader Valve, building up the fuel pressure, should be 56 to 63 lbs, and then with the key off let it sit. Watch the fuel pressure gauge, it should not drop more than 5 lbs. in three minutes. Otherwise if the check engine light has ben on then it is a possible Throttle Positioning Sensor. The vehicle would need to be scanned for trouble codes to verify.

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 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 Ford F-250 Super Duty
24 Great Deals out of 1,204 listings starting at $7,995
Used Chevrolet Camaro
16 Great Deals out of 307 listings starting at $10,500
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.