My suburban periodically idles too low when i come to a stop.......

Asked by Aug 08, 2008 at 08:24 PM about the 1992 Chevrolet Suburban

Question type: Maintenance & Repair

my 92 chev suburban, 350 auto, 4wd, 50m on rebuilt motor & trans, will frequently, but not always drop to an idle way too low at a stop sign or light.  It almost dies and the truck shakes quite a bit.  With brake pedal depressed, the motor will not immediately respond to a tap on the throttle,  still shakes.  Upon taking off, there will be a delay in throttle response and then the motor engages and off we go.  This does not happen all the time just about 1 in every 15 to 20 stops. The motor runs excellent all other times and has no problem starting. I've replaced fuel and air filters and used fuel and carb treatments. Any help with a diagnosis would be greatly sppreciated.  Thank you.

3 Answers

10,595

you might try adjusting the tps sensor and/or the idle screw.

75

u just need to keep pressure on both the brake and throttle not to much or youll be burning i the middle of the street and dont want that or else the cops will get u with a ticket of disturbing the peace.

25

try clean the throttle plate up, adjust the throttle wire, check base timing and check idle control valve

Your Answer

Suburban

Looking for a Used Suburban in your area?

CarGurus has 22,779 nationwide Suburban listings starting at $1,999.

ZIP:

Chevrolet Suburban Experts

  • #1
    Andrew Olsen
    Reputation
    1,040
  • #2
    Neal Turner
    Reputation
    930
  • #3
    Eric Fritz
    Reputation
    910
View All

Related Models For Sale

Used GMC Yukon
464 Great Deals out of 22,338 listings starting at $1,995
Used Ford F-150
2,561 Great Deals out of 195,338 listings starting at $1,300
Used GMC Suburban
143 listings starting at $3,860

Used Cars For Sale

2017 Chevrolet Suburban For Sale
71 Great Deals out of 10,171 listings starting at $39,993
2016 Chevrolet Suburban For Sale
43 Great Deals out of 1,457 listings starting at $32,988
2015 Chevrolet Suburban For Sale
41 Great Deals out of 1,473 listings starting at $22,995
2014 Chevrolet Suburban For Sale
15 Great Deals out of 537 listings starting at $16,998
2013 Chevrolet Suburban For Sale
21 Great Deals out of 612 listings starting at $10,495

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.