At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.
Everything works fine but it wont downshift into passing gear. The only code are evap,tps,map. I replaced the tps because i have a spare. The map is to expensive to just try it.
If it will not kick down then its a computer fault on the autobox computer but it could have a dirty connection in the engine loom as it has to sense the throttle pedal opening ,try cleaning all the connections and a spray with wd40 on any electrical pin connections
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
I would be looking for a vacuum operated actuator that down shifts when the accelerator is wide open
could be a failing TCM so have the fault codes read first to get an idea of the problem area
You shouldn't be replacing any parts
until you understand the systems & do
the testing needed to find a problem
The only parts that get installed are ones that fail a test
& are found to be the system fault causing the problems
Your work the codes one at a time & resolve them as you go
Transmissions have 4,5 or 6 speeds,as well as converter
lock-up in most speeds,there is no passing gear per/say
Codes do not indicate a need for parts or tell you anything is wrong
Codes are input computer sensors that report how the mechanicals
are doing,they can fail but they can also set codes & are not related
to anything.
You could have a sensor issue effecting shift strategy & you could
also have a failed transaxle, if it is original,over ten years old or
the fluid hasn't been changed every 3 years since new
TPS wears in spots and can cause intermittent problems like you described. Try turning off the car and unpluging the TPS. Start the car and see if smooths out the idle/reving problem while the TPS is unplugged. If yes replace the TPS.
Yes it is possible for that to be the problem, The transmission needs to know how hard or gently that you are driving the vehicle to know when to shift to another gear, this used to be accomplished by a cable (kick down) from the throttle body or carbuerator to the tranmssion but that job has been repalced by the TPS sensor. Think of when you are on the highway and you have been waitng to pass that slow car for a while you finally get the opportunity so you gun the engine as you change lanes to pass, as you gun the engine the transmission also kicks down into a lower gear to give you more power to complete the pass. Hope this helps.
×