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1990 Chevy silverado with auto transmission it runs great however at times it seems to miss when it complete it's shifting pattern and goes into overdrive like there is some kind of spark problem you?
Wiki User
∙ 16y ago
One of these ideas might help... (I can't advise much without knowing what type of engine set up you have) Give it a tune up. Bad plugs and wires can cause this type of hesitation. The tranny may require service. A good flush every 50,000 to 70,000 miles is highly recommended. You may just need a new tranny selenoid. If you have a distributor, then you can also check the module inside. It can usually be tested at your local parts store free of charge. If you have ignition coils, then you may have one that's going bad.
Wiki User
∙ 16y ago
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Why no shift into 4th overdrive Pontiac Montana?
The Montana not shifting into overdrive could be caused by several things. First, check the computer codes for any possible problems. Make sure that the transmission fluid is full and does not look or smell burnt. If the vehicle has high mileage, the transmission filter could need changing.
What is a transmission control solenoid?
Based on information that is generated within the transmission and other sensors in the engine, the solenoid (or any one of them) controls certain functions of the transmission such as changing gears.
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Several things can cause your transmission to be stuck in second gear. Broken or detached shifting linkage will cause the problem. A broken shifting for in the transmission can also cause the problem.
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No.. They really have nothing in common. A speed sensor sends a signal from your transmission that is shown on your gauge in the dash. That is all the sensor does- it has nothing to do to my knowledge with the shifting functions
What does a bad modulator valve do?
If the transmission modulator valve is vacuum operated and it goes bad it can allow the engine to suck transmission fluid thru the engine causing the engine to blow blue smoke out the exhaust.
What is the cause of Corvette 4 3 transmission overdrive not shifting?
My 1984 corvette transmission is not shifting into overdrive. It shifts first thru third fine.
If its not the shift solenoids what could prevent the transmission from shifting into third gear and overdrive?
If your transmission is not shifting into third gear and overdrive it could be a parking pawl. This prevents the transmission from rotating.
Why does the transmission shift to neutral when shifting to overdrive on a 1991 Plymouth lazer rs?
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Ford Expedition 1998 overdrive on or off?
Overdrive ON is the normal position But if you are towing something or driving in hilly country where the transmission is constantly shifting from overdrive to drive , then you want to switch the overdrive off
Is overdrive safe to use in the city?
Safe but unnecessary. The trans will be constantly shifting in and out of overdrive in traffic and will put unnecessary wear on the transmission. Save it for the freeway.
Transmission not shifting into third gear or overdrive?
check fluid level, if good, will need pro evaluation
Where is the electric overdrive fuse Nissan 240 sx?
On the Nissan 240SX the electric overdrive switch is located on the right side of the transmission. Overdrive allows shifting into the auto's fourth gear.
When should you disengage the overdrive in your Ford F 150?
When your transmission starts down shifting a lot. Or in other words keeps jumping out of overdrive often. Remember all your transmission wear happens only when it changes gears.
Do you supposed to leave your overdrive on while driving?
Overdrive is the normal position - if you are in hilly areas and find the transmission keeps shifting back and forth between overdrive and drive , you can use the overdrive cancel switch to shut off the overdrive feature and if you are towing something you also want to shut off the overdrive
What causes a clicking and popping sound on a Silverado when shifting into reverse then shifting into drive and taking off?
well it could be the transmission bracket or ur motor mounts but im not real sure
Why is your transmission shifting hard its a 06 silverado with 10000 miles?
Still under warranty. Take it back to the dealer and let them find out why.
When to turn off overdrive in your car?
The overdrive should be switched off when you want to avoid unneccessary shifting. If you are driving on a hilly road, the vehicle will shift out of overdrive going uphill to maintain speed while pulling the vehicles weight up the hill, and shift into overdrive going down the hill to save fuel when additional engine power is not needed. When towing with an automatic transmission, the vehicle may tend to repeatedly shift in and out of overdrive due to the added weight. In scenerios such as these, you should turn off the overdrive to avoid the unneccesary shifting which puts more wear and tear on the transmission.
