0
Would a broken Hose to modulator valve cause shifting problems on a old ford with a c4?
Wiki User
∙ 13y ago
Absolutely!
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
Where is the vacuum modulator valve '87 Chevy Suburban?
Newer models like yours do not have a modulator on the trans; they are computer controlled. If you are having shifting problems I would suggest you change your trans fluid and filter; that should clear up shifting problems if it seems to stick in a lower gear. I hope this helps you. Mark
What would cause late shifting in 1st gear in a automatic transmission for a 1997 Ford Taurus?
check for a failed vacuum modulator or a vacuum leak to the vacuum modulator. It sounds like you are shifting on the governor or engine management unit.
Can a broken engine oil dipstick cause hard shifting?
a broken dip stick wont cause hard shifting... the engine does not do the any shifting... your problem would be the transmission... check transmission....
Would a bad 1995 Ford Taurus motor mount cause transmission shifting problems?
It is possible. Replace any broken mount, and this will eliminate the possibility.
What can you do about your 1994 Pontiac transport not shifting until it is warm?
could be a bad modulator valve but i would change filter and fluid in transmission first
Where is the vacuum modulator located on a 1994 Eddie Bauer Explorer?
I could be wrong, but I don't think you have one; if you do it would be near the trans pan. If your transmission is shifting poorly I would change the filter and fluid.
Why would your transmission have problems shifting in 1 or 2 and reverse but only at times?
bad filter
What would cause shifting problems in a 1990 automatic Ford 150 van?
Try changing the transmission fluid and filter
What would cause my 1997 dodge caravan to stall when shifting into drive or reverse runs perfect at idle.?
your fuel pump can be broken or your fuel injectors...
Why would a Chevy have first gear and the engine rev but not try to upshift?
Either you have a vacuum leak on your transmission or the bands on second and third gear are burnt off. Try pulling off the transmission oil pan.(if you do this make sure you have enough Auto Transmission fluid to put back in unless you find a bunch of sludge in the pan. If this is found then the bands are burnt off and the transmission should be replaced.) For a vacuum leak start up the vehicle and open the hood. If you hear a hissing sound then there is a vacuum leak and it usually is down on the transmission itself or right at the carburator. you can check the vacum at the modulator with a vacum gauge. if you pull the hose off the modulator & trans fluid comes out them the modulator is bad answer if you are saying that the trans does not even try to shift out of first then you have trash in the valve body or broken parts. if the vehicles pulls from first then the engine revs up and does not pull then the clutch packs have failed. a vacuum modulator causes hard/slow shifting but does not stop the trans from shifting
How do you adjust a 350 trany?
There is no adjustments to a 350 Turbo Transmission (GM). The only external thing that would cause shift problems is the vacuum modulator on the side. This is replaceable easily. Check for proper vacuum signal to the modulator. Make sure there are no holes and or kinks in the vacuum line from the engine to the modulator. If none is found, replace the modulator for shift complaints. If it is slipping, the tranmission will require removal and overhaul. This transmission uses wet clutch plates and automatically compensates for wear in the plates to a certain point.
What would cause a clunk sound on a 1994 Pontiac Grand Am when shifting automatic transmission from park?
broken transmission mount there is a front left, rear left and a center mount
