Whst would cause 01 grand am 2.4 motor to all of a sudden start sputtering and missing but only when the car gets to normal temp.when its cold it runs like a top

Asked by Jun 03, 2015 at 12:51 PM about the 2001 Pontiac Grand Am SE

Question type: Maintenance & Repair

Im stumped on this.it neve done this til I changed the top water outlet and imno dummy
and have been under many hoods.i checked for vacum leak or electrical connection that
maybe I knocked off but I can find nothing.could a little water run down on a sensor or
something when I removed the hoses during the water outlet removal or is it just
coincidence

2 Answers

coincidence, we have a 2001 2.4l . I would start with the air filter,make sure nothing is living in it, change if needed. $10 , if not move onto the throttle body, have to take off air filter and hose leading up to it ,careful not to break sensor on hose, take cover off to expose throttle body, two bolts and there should be 1 screw to a clamp thru a access hole in cover. get that off and there's the throttle body. buy throttle body cleaner and a clean rag and spray and clean the crud out...it will need it. then onto the iac sensor (idle air control) $125 .should be good after that,if not go to spark plugs n wires,and clean packs. $20 wires,$ 5 x4 spark plugs. hope that helps.

Oit turned out the coil pack must have went bad at that time I Replaced it and it solved the prob

Your Answer

Add photo

Related Questions

Search Pontiac Grand Am Questions

Pontiac Grand Am Experts

#1 tenspeed
tenspeed
Reputation 7,610
#2 John Saffrahn
John Saffrahn
Reputation 1,600
#3 Tom Demyan
Tom Demyan
Reputation 1,410
View All

Related Models For Sale

Used Pontiac Grand Prix
30 Great Deals out of 2,871 listings starting at $900
Used Pontiac Firebird
12 Great Deals out of 724 listings starting at $3,990
Used Chevrolet Impala
521 Great Deals out of 31,726 listings starting at $1,450
Used Chevrolet Camaro
226 Great Deals out of 30,943 listings starting at $1,217
Used Ford Mustang
474 Great Deals out of 45,735 listings starting at $1,999
Used Chevrolet Malibu
948 Great Deals out of 79,665 listings starting at $1,500
Used Nissan Altima
1,034 Great Deals out of 81,564 listings starting at $1,200
Used Honda Accord
813 Great Deals out of 84,286 listings starting at $1,050
Used Toyota Camry
1,006 Great Deals out of 90,918 listings starting at $650
Used Honda Civic
656 Great Deals out of 88,604 listings starting at $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.