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

9,685

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,,

Your Answer

Add photo

Related Questions

Search GMC Savana Cargo Questions

GMC Savana Cargo Experts

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

Related Models For Sale

Used Chevrolet Express Cargo
67 Great Deals out of 12,017 listings starting at $2,500
Used GMC Sierra 2500HD
99 Great Deals out of 13,461 listings starting at $2,650
Used GMC Savana
4 Great Deals out of 1,280 listings starting at $2,000
Used Ford E-Series Cargo
73 Great Deals out of 3,080 listings starting at $2,200
Used GMC Sierra 1500
761 Great Deals out of 69,110 listings starting at $1,850
Used Chevrolet Express
38 Great Deals out of 5,206 listings starting at $1,335
Used Chevrolet Silverado 2500HD
301 Great Deals out of 28,173 listings starting at $2,495
Used Ford E-Series Wagon
26 Great Deals out of 1,318 listings starting at $1,500
Used Ford Transit Cargo
159 Great Deals out of 19,034 listings starting at $9,500
Used Chevrolet Astro Cargo Van
136 listings starting at $2,900
Used GMC Sierra 3500
10 Great Deals out of 248 listings starting at $5,995
Used GMC Sierra 2500
151 listings starting at $4,500
Used Ford F-150
2,068 Great Deals out of 207,301 listings starting at $1,499
Used Chevrolet Silverado 1500
1,769 Great Deals out of 181,161 listings starting at $250

Used Cars For Sale

2017 GMC Savana Cargo For Sale
2,736 listings starting at $24,997
2016 GMC Savana Cargo For Sale
15 Great Deals out of 752 listings starting at $19,995
2015 GMC Savana Cargo For Sale
176 listings starting at $17,500
2014 GMC Savana Cargo For Sale
84 listings starting at $11,900
2013 GMC Savana Cargo For Sale
30 listings starting at $11,997

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.