Question about 1996 GMC Jimmy
Would a bad throttle body sensor make the car act like transmission was slipping or bad altogether?
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Posted on Jan 02, 2017
SOURCE: Transmission is Slipping
Without knowing the year, engine size, etc., I can only make educated guesses, but here goes: You stated "My car will drive, but very slow hardly moving". My first suspicion is that you don't have a transmission problem, but the car is in what Chrysler calls the 'limp-home mode'. This occurs when the computer 'sees' a problem with an engine function or sensor that is serious, but not so bad that the car won't run at all. Limp-home mode allows your car to only operate in second gear so that you won't damage it further by driving normally, but won't leave you stranded either. Is your 'check engine' or 'service engine' light on? If not, check to see that it actually works by turning the key 'on', but not starting the car. All the dash lights should be lit for about 3-5 seconds. No matter what, you need to check your transmission fluid level (on a Crysler, should be checked with the engine running and in gear, NOT park or nuetral). Safety first, make sure someone is holding the brake on - please don't ever trust a 'parking brake' for this. If the fluid level is OK and there's no 'check engine' light you need
to visit a competent transmission shop. Probabably a worn front pump, torque converter, or a hung spool valve in the valve body, none of which is generally fixable at home. If you do have a 'check engine' light on, see a regular mechanic first as there is a mechanical problem probably not related to the transmission. Good Luck!
Posted on Nov 24, 2008
yes, this is the case of a failed throttle body, in which case it needs replaced, the car is getting too much fuel causing the high idle. this needs replaced asap. you could proably find a small independant honda shop that could do the work for less.
Posted on May 12, 2009
First, if the O2 sensor is bad, it is bad and need to be replaced. Sometime it causes transmission problems because the torque the crankshaft is sending via the torque converter to the transmission isn't that the trans expected. But hook up to the computer again after replacing the O2 sensor and check if you get some transmission problems detected. Read out the freeze frame data too. it can help you localize the preoblem. Make sure testing all related systems and sensor before replacing it.
Posted on Oct 31, 2009
If you went 1k miles since that same issue occurred I would look at the transmission. A faulty torque converter, clogged fuel filter, or a clogged CAT can cause a delay in the shifting but it would happen right away not 1k miles later.
Posted on May 05, 2010
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