1998 GMC Z -71 acts like it jumped timing

Asked by Feb 07, 2017 at 10:26 PM about the 1998 GMC Sierra 1500 K1500 SL 4WD Extended Cab SB

Question type: Maintenance & Repair

My truck acts like it jumped timing but pull #1 TDC
and rotor button points at #1 on distributor cap, so
it's in time. It lags to start so bad burnt one starter
up. If pedal is held to floor it will crank but won't ifle

1 Answer

78,055

May have a fuel pressure issue, or ignition issue. Check to see if you have spark. If so, then there may be a problem with the spider injection, or the fuel pump. Fuel pressure should be checked after replacing the fuel filter, it should be 56 to 63 lbs. at the Schrader Valve.

Your Answer

GMC Sierra 1500 Experts

  • #1
    dragonflyoffshore
    Reputation
    5,500
  • #2
    John Saffrahn
    Reputation
    3,780
  • #3
    Glenn Clingenpeel
    Reputation
    3,510
View All

Related Models For Sale

Used Chevrolet Silverado 1500
182 Great Deals out of 10,506 listings starting at $2,230
Used Ford F-150
616 Great Deals out of 8,935 listings starting at $1,995
Used Dodge Ram 1500
42 Great Deals out of 458 listings starting at $3,488
Used Toyota Tacoma
33 Great Deals out of 1,241 listings starting at $4,444
Used Ford F-250 Super Duty
27 Great Deals out of 660 listings starting at $1,490
Used GMC Yukon
4 Great Deals out of 878 listings starting at $4,995
Used Chevrolet Tahoe
7 Great Deals out of 818 listings starting at $4,200
Used Chevrolet Camaro
917 listings starting at $11,995
Used Cadillac Escalade
511 listings starting at $5,995

Used Cars For Sale

2018 GMC Sierra 1500 For Sale
3 Great Deals out of 8,094 listings starting at $3,810
2017 GMC Sierra 1500 For Sale
20 Great Deals out of 687 listings starting at $1,800
2016 GMC Sierra 1500 For Sale
13 Great Deals out of 286 listings starting at $20,988
2015 GMC Sierra 1500 For Sale
65 Great Deals out of 524 listings starting at $19,988
2014 GMC Sierra 1500 For Sale
31 Great Deals out of 399 listings starting at $16,075

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.