i have a 2001 gmc savana 3/4 ton 5.7 vortec, i am having problems with a rough/low idle and it dies under load and has no power. i have replaced the fuel pump, fuel filter, spark plugs wires, plugs, rotor, cap, air filter, MAF sensor, TPS sensor, idle air control sensor, EGR valve. i am out ideas please help. By the way i have NO codes.

Asked by May 25, 2014 at 12:33 AM about the 2001 GMC Savana Cargo G3500 Cargo Van Extended

Question type: Maintenance & Repair

i have a 2001 gmc savana 3/4 ton 5.7 vortec, i am having problems with a rough/low idle
and it dies under load and has no power. i have replaced the fuel pump, fuel filter, spark
plugs wires, plugs, rotor, cap, air filter, MAF sensor, TPS sensor, idle air control sensor,
EGR valve. i am out ideas please help. By the way i have NO codes.

1 Answer

9,785

Sounds like could be low compression on cylinder,remove each plug one at a time and test with a compression checker,if you dont have one you can rent one a your local parts store.Remove fuel pump relay to keep engine from cranking and test each cylinder ,They should be at least 45 to 50 pounds and hold it.have someone to turn car over while you test the pressure in each plug hole. Remeber it must hold the pressure.if you find one that is low pressure you may have to have head work done. It sounds like you have done every thing else you can do.Best of luck to you,,

1 of 1 people found this helpful.

Your Answer

GMC Savana Cargo Experts

  • #1
    archiehill
    Reputation
    70
  • #2
    Kelly Mayo
    Reputation
    40
  • #3
    Rowefast
    Reputation
    30
View All

Related Models For Sale

Used Chevrolet Express Cargo
52 Great Deals out of 10,650 listings starting at $2,500
Used GMC Sierra 2500HD
110 Great Deals out of 13,470 listings starting at $2,999
Used Ford E-Series Cargo
57 Great Deals out of 2,978 listings starting at $2,500
Used GMC Savana
4 Great Deals out of 1,173 listings starting at $4,950
Used GMC Sierra 1500
896 Great Deals out of 65,452 listings starting at $1,995
Used Chevrolet Express
66 Great Deals out of 5,006 listings starting at $3,495
Used Chevrolet Silverado 2500HD
312 Great Deals out of 29,149 listings starting at $2,995
Used Ford Transit Cargo
24 Great Deals out of 18,402 listings starting at $7,999
Used Ford E-Series Wagon
25 Great Deals out of 1,184 listings starting at $2,999
Used GMC Sierra 2500
5 Great Deals out of 150 listings starting at $3,495
Used Ford F-150
2,317 Great Deals out of 183,061 listings starting at $1,000
Used Chevrolet Silverado 1500
2,134 Great Deals out of 167,340 listings starting at $1,995

Used Cars For Sale

2017 GMC Savana Cargo For Sale
2,414 listings starting at $20,257
2016 GMC Savana Cargo For Sale
690 listings starting at $19,990
2015 GMC Savana Cargo For Sale
99 listings starting at $15,995
2014 GMC Savana Cargo For Sale
89 listings starting at $11,500
2013 GMC Savana Cargo For Sale
40 listings starting at $9,995

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.