hey i just dropped in a 2.4L twin cam for a 98 maibu. i think they pulled the motor form a 00 pontiac everything mounts up and looks good but when i run the car the exhaust pipe to the manifold turns red and it has the worst idle problem ive ever seen, when i disconnet the MAP sensor is calms down but it knock intermittenly.

Asked by Dec 25, 2015 at 05:07 PM about the 1998 Chevrolet Malibu Base

Question type: Maintenance & Repair

2 Answers

Just a guess, but is the cat good, not clogged? The heat transfer from the catalytic converter can get so hot to turn the exhaust pipe red.

237,795

Also a leaky fuel injector dumping raw fuel into the cats will also turn it red. Hence the poor idle. Check the fuel pressure.

Your Answer

Add photo

Related Questions

Malibu

Looking for a Used Malibu in your area?

CarGurus has 79,665 nationwide Malibu listings starting at $1,500.

ZIP:

Search Chevrolet Malibu Questions

Chevrolet Malibu Experts

#1 tenspeed
tenspeed
Reputation 2,010
#2 T_S_T
T_S_T
Reputation 1,860
#3 Tom Demyan
Tom Demyan
Reputation 1,340
View All

Related Models For Sale

Used Honda Accord
813 Great Deals out of 84,287 listings starting at $1,050
Used Nissan Altima
1,033 Great Deals out of 81,564 listings starting at $1,200
Used Toyota Camry
1,011 Great Deals out of 90,917 listings starting at $650
Used Hyundai Sonata
779 Great Deals out of 51,051 listings starting at $1,400
Used Chevrolet Camaro
225 Great Deals out of 30,943 listings starting at $1,217
Used Nissan Maxima
306 Great Deals out of 25,213 listings starting at $999
Used Honda Civic
656 Great Deals out of 88,603 listings starting at $995

Used Cars For Sale

2017 Chevrolet Malibu For Sale
114 Great Deals out of 48,889 listings starting at $13,741
2016 Chevrolet Malibu For Sale
229 Great Deals out of 8,226 listings starting at $10,995
2015 Chevrolet Malibu For Sale
175 Great Deals out of 5,715 listings starting at $8,753
2014 Chevrolet Malibu For Sale
118 Great Deals out of 4,609 listings starting at $7,999
2013 Chevrolet Malibu For Sale
87 Great Deals out of 2,692 listings starting at $5,995

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.