Why would my exhaust manifold be glowing red while ideling?

Asked by Mar 09, 2015 at 03:35 PM about the 1991 Chevrolet S-10

Question type: Maintenance & Repair

After ideling for about 30 seconds my exhaust manifold glows red hot. we have tested just about everything and it still continues to glow

9 Answers

19,045

It's running super lean. Don't drive it like that

We can't figure out why it's running lean

19,045

Which motor are we dealing with?

Chevy 2.5

19,045

It's either vacuum leaks, low fuel pressure, fuel injector issue, o2 sensor or the pcm is going out

We have tested all of those and everything came up normal

19,045

What was the o2 reading? Or did you just replace it?

It was reading .05 so we replaced

19,045

.05 means it's reading super lean so it was probably correct. What's your fuel pressure at?

Your Answer

S-10

Looking for a Used S-10 in your area?

CarGurus has 1,276 nationwide S-10 listings starting at $1,800.

ZIP:

Chevrolet S-10 Experts

  • #1
    Andrew Olsen
    Reputation
    2,370
  • #2
    Trebor66
    Reputation
    1,020
  • #3
    John Saffrahn
    Reputation
    1,000
View All

Related Models For Sale

Used Ford Ranger
172 Great Deals out of 5,550 listings starting at $1,000
Used GMC Sonoma
7 Great Deals out of 439 listings starting at $1,499
Used Ford F-150
2,228 Great Deals out of 182,699 listings starting at $1,500
Used Dodge Dakota
129 Great Deals out of 3,695 listings starting at $1,650
Used Chevrolet Blazer
4 Great Deals out of 1,160 listings starting at $950
Used GMC Sierra 1500
791 Great Deals out of 68,349 listings starting at $1,699
Used Chevrolet C/K 1500
880 listings starting at $3,195
Used Chevrolet Camaro
424 Great Deals out of 31,920 listings starting at $2,395

Used Cars For Sale

2004 Chevrolet S-10 For Sale
57 listings starting at $2,495
2003 Chevrolet S-10 For Sale
3 Great Deals out of 325 listings starting at $3,299
2002 Chevrolet S-10 For Sale
197 listings starting at $2,495
2001 Chevrolet S-10 For Sale
166 listings starting at $1,800
2000 Chevrolet S-10 For Sale
185 listings starting at $3,900

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.