why is my 5.7 vortec engine idling to low

Asked by Feb 06, 2016 at 05:14 PM about the 1997 Chevrolet C/K 2500 Silverado Extended Cab LB HD 4WD

Question type: Maintenance & Repair

97 chevy with 5.7 vortec engine : its idling ruff and low , had it scanned , indicated spider injector needed replacing , had it replaced , starts right up now , still idles ruff and low , but now it has a hesitation after tranny shifts , thought tranny might be slipping a bit , had it serviced , tranny is fine , still has the hesitation . it does need a tune up , this might solve the low and ruff idle .  My question is , does the hesitation have to do with the spider injector not being installed properly ? or will a tune up solve this problem ?
the engine was not going through any hesitation before the spider injector was installed , it was running fine except for the low idle.  anybody else gone through this problem ?

1 Answer

69,635

Idle Air Control Valve may need to be cleaned or replaced. The port it goes into would need to be cleaned out good also. That is a major source of vacuum so you want to make sure it seats back in there good.

Your Answer

Add photo

Related Questions

Search Chevrolet C/K 2500 Questions

Chevrolet C/K 2500 Experts

#1 Rowefast
Rowefast
Reputation 290
#2 COMETGUY61
COMETGUY61
Reputation 190
#3 tennisshoes
tennisshoes
Reputation 120
View All

Related Models For Sale

Used Chevrolet C/K 3500
237 listings starting at $4,995
Used Chevrolet C/K 1500
892 listings starting at $2,500
Used Dodge Ram 2500
159 Great Deals out of 5,240 listings starting at $3,495
Used GMC Sierra 2500
135 listings starting at $4,995
Used Ford F-150
2,195 Great Deals out of 206,316 listings starting at $1,499
Used Ford F-250
481 listings starting at $3,475
Used GMC Sierra 1500
825 Great Deals out of 68,199 listings starting at $2,484

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.