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

17,685

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

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

17,685

Which motor are we dealing with?

Chevy 2.5

17,685

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

17,685

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

It was reading .05 so we replaced

17,685

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

Your Answer

Add photo

Related Questions

S-10

Looking for a Used S-10 in your area?

CarGurus has 1,428 nationwide S-10 listings starting at $1,995.

ZIP:

Search Chevrolet S-10 Questions

Chevrolet S-10 Experts

#1 Andrew Olsen
Andrew Olsen
Reputation 2,240
#2 Trebor66
Trebor66
Reputation 950
#3 John Saffrahn
John Saffrahn
Reputation 940
View All

Related Models For Sale

Used Ford Ranger
178 Great Deals out of 6,228 listings starting at $1,300
Used GMC Sonoma
4 Great Deals out of 471 listings starting at $2,700
Used Ford F-150
2,426 Great Deals out of 211,450 listings starting at $895
Used Dodge Dakota
110 Great Deals out of 3,926 listings starting at $1,500
Used Chevrolet Blazer
1,125 listings starting at $1,995
Used GMC Sierra 1500
879 Great Deals out of 64,789 listings starting at $1,500
Used Chevrolet C/K 1500
874 listings starting at $2,943
Used Chevrolet Camaro
137 Great Deals out of 35,611 listings starting at $1,995
Used Ford Mustang
325 Great Deals out of 45,932 listings starting at $2,000

Used Cars For Sale

2004 Chevrolet S-10 For Sale
54 listings starting at $2,999
2003 Chevrolet S-10 For Sale
345 listings starting at $2,895
2002 Chevrolet S-10 For Sale
221 listings starting at $1,995