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

17,265

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

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

17,265

Which motor are we dealing with?

Chevy 2.5

17,265

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

17,265

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

It was reading .05 so we replaced

17,265

.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 1,655 nationwide S-10 listings starting at $2,450.

ZIP:

Search Chevrolet S-10 Questions

Chevrolet S-10 Experts

#1 Andrew Olsen
Andrew Olsen
Reputation 2,180
#2 Trebor66
Trebor66
Reputation 940
#3 John Saffrahn
John Saffrahn
Reputation 920
View All

Related Models For Sale

Used Ford Ranger
204 Great Deals out of 6,719 listings starting at $1,450
Used GMC Sonoma
13 Great Deals out of 521 listings starting at $1,100
Used Ford F-150
2,700 Great Deals out of 212,349 listings starting at $1,000
Used Dodge Dakota
122 Great Deals out of 4,297 listings starting at $1,495
Used Chevrolet Blazer
1,343 listings starting at $1,995
Used GMC Sierra 1500
938 Great Deals out of 62,274 listings starting at $1,395
Used Chevrolet C/K 1500
1,048 listings starting at $2,000
Used Chevrolet Camaro
279 Great Deals out of 38,301 listings starting at $1,250

Used Cars For Sale

2004 Chevrolet S-10 For Sale
53 listings starting at $3,995
2003 Chevrolet S-10 For Sale
3 Great Deals out of 390 listings starting at $2,995
2002 Chevrolet S-10 For Sale
5 Great Deals out of 269 listings starting at $2,450