exauhst manifolds glowing red.but i have no cat

Asked by Mar 23, 2013 at 03:01 PM about the 1994 GMC Suburban K1500 4WD

Question type: Maintenance & Repair

exauhst manifolds glowing red.but i have no cat

5 Answers

103,895

Sounds like high speed, lean operation.

1 of 1 people found this helpful.

what is going on with your mixture...timing? late...oh so late ignition...change the fuel on us?

35,955

Roy wtf are you talking about? The only fuel that might cause this is alcohol and it's doubtful he is running that. The timing will make the truck run like crap before it cherries the exhaust and he would be here with that issue instead of the one he has. Tenspeed is spot on.

30

IAC MOTOR /VALVE DEFECTIVE

Exhaust valve leak or running lean, guaranteed

Your Answer

Suburban

Looking for a Used Suburban in your area?

CarGurus has 143 nationwide Suburban listings starting at $1,495.

ZIP:

GMC Suburban Experts

  • #1
    LouB
    Reputation
    1,480
  • #2
    ShadetreeMech
    Reputation
    230
  • #2
    Larry Thibert
    Reputation
    230
View All

Related Models For Sale

Used Chevrolet Suburban
500 Great Deals out of 23,133 listings starting at $1,250
Used GMC Yukon
554 Great Deals out of 18,732 listings starting at $2,000
Used Chevrolet Tahoe
883 Great Deals out of 39,460 listings starting at $1,799
Used GMC Sierra 1500
1,230 Great Deals out of 63,095 listings starting at $1,200
Used Ford F-150
3,206 Great Deals out of 226,356 listings starting at $1,250
Used Ford Explorer
1,156 Great Deals out of 64,842 listings starting at $1,200
Used Jeep Grand Cherokee
931 Great Deals out of 67,542 listings starting at $950

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.