How to check TPS and IAC valve

Asked by Sep 07, 2016 at 01:49 AM about the 2004 Nissan Altima 2.5 S

Question type: Maintenance & Repair

Hello everyone,

Anybody knows how could I check my TPS and IAC
valve in my Altima 2004?
I have a jerky shifting problem, and after searching
a loootttt I figure out that there might be TPS or IAC
fault, although I have NO check engine lighg on. It
also looks like an electrical issue!
Thanks a lot

2 Answers

26,225

The very vest way is with a scan tool that can read PIDS (Input and Output signals). I sincerely doubt that your transmission shifting concerns are related to either the TPS or the IAC (especially the IAC). BTW - a the Check Engine light is only illuminated when a component or system is operating outside of designed, measurable parameters. If you think that it's an electrical problem, why not take it to a Transmission Shop that can check exactly what it's doing and cut the guesswork?

2 of 2 people found this helpful.

Thanks Tracy, I have already taken the car to the transmission shop and they did a road test and couldn't figure out the problem. They were like, your tranmission looks good !!!

Your Answer

Nissan Altima Experts

  • #1
    Tom Demyan
    Reputation
    2,220
  • #2
    F_O_R
    Reputation
    760
  • #3
    Cassie Sapphire
    Reputation
    740
View All

Related Models For Sale

Used Nissan Maxima
314 Great Deals out of 21,703 listings starting at $999
Used Honda Accord
1,126 Great Deals out of 71,729 listings starting at $1,100
Used Toyota Camry
1,043 Great Deals out of 85,916 listings starting at $800
Used Honda Civic
782 Great Deals out of 60,175 listings starting at $950
Used Nissan Sentra
756 Great Deals out of 50,023 listings starting at $2,200
Used Toyota Corolla
956 Great Deals out of 63,337 listings starting at $1,850
Used Hyundai Sonata
896 Great Deals out of 56,034 listings starting at $1,500
Used Chevrolet Malibu
1,060 Great Deals out of 61,019 listings starting at $880
Used Kia Optima
530 Great Deals out of 32,369 listings starting at $995
Used Chevrolet Impala
571 Great Deals out of 34,334 listings starting at $900
Used Hyundai Elantra
632 Great Deals out of 49,769 listings starting at $1,780

Used Cars For Sale

2017 Nissan Altima 2.5 S For Sale
25 Great Deals out of 6,651 listings starting at $12,299
2016 Nissan Altima 2.5 S For Sale
131 Great Deals out of 4,107 listings starting at $8,991
2015 Nissan Altima 2.5 S For Sale
232 Great Deals out of 5,025 listings starting at $7,500
2014 Nissan Altima 2.5 S For Sale
73 Great Deals out of 1,845 listings starting at $3,900
2013 Nissan Altima 2.5 S For Sale
37 Great Deals out of 1,175 listings starting at $4,987

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.