Issues with idle RPM & acceleration once brake is released

10

Asked by Apr 29, 2016 at 10:23 AM about the 1998 Chevrolet C/K 1500

Question type: Maintenance & Repair

Just purchased rebuilt 98 Silverado plus all decked out. I haven't had the truck for more than a week and already having a few issues. Noticed both on my way to work. 1. On my way to work this morning my RPMs at idle seemed very low between 500-700, but it also sounded like it was about to die. 2. I have to force my brake down somewhat, once released my truck will accelerate on its own on stop around 12 mpr. Any thoughts on what the issue could be.

1 Answer

82,115

RPM's sound normal, actually 700 is getting to high. On your other issue, sounds like the brake booster is starting to go. Having to press hard on the brakes is a good indication. This may be messing with the rpms, I would look at this first. Also run some fuel injection cleaner threw a tank of gas.

Your Answer

Chevrolet C/K 1500 Experts

  • #1
    Andrew Olsen
    Reputation
    4,200
  • #2
    John Saffrahn
    Reputation
    2,720
  • #3
    Rowefast
    Reputation
    2,340
View All

Related Models For Sale

Used Chevrolet Silverado 1500
1,780 Great Deals out of 149,276 listings starting at $444
Used GMC Sierra 1500
708 Great Deals out of 58,799 listings starting at $1,995
Used Ford F-150
2,313 Great Deals out of 214,968 listings starting at $1,300
Used Chevrolet C/K 2500
196 listings starting at $3,500
Used Dodge Ram 1500
306 Great Deals out of 9,513 listings starting at $1,750
Used Chevrolet Camaro
238 Great Deals out of 28,791 listings starting at $1,800
Used Toyota Tacoma
408 Great Deals out of 44,656 listings starting at $1,995
Used Chevrolet C/K 3500
183 listings starting at $4,895
Used Chevrolet Tahoe
542 Great Deals out of 36,630 listings starting at $1,299
Used Chevrolet Silverado 2500
202 listings starting at $4,495

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.