Question about Cars & Trucks
When you had the transmission filter and gasket changed. do you know if they back flushed the fluild. there is 5 to 7 shift soleniods in the transmission. when garages back flush transmission it causes the solenoids to close. are there any codes. sounds like your 1st and 2nd shift solenoid is stuck closed
Posted on Nov 28, 2012
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Posted on Jan 02, 2017
well it didn't hurt anything to put the new fluids in. Always good to keep up on those some of the time forgotten routine maintenance. The erratic idle could be caused by a number of things. A leaking intake manifold gasket is one but usually is a steady higher racing idle. Could be clogged injector/s, not sure if you have a throttle body which would house a single injector or a fuel rail which would house 4, one by each cylinder. The other possibilities are any of the sensors that feed the information needed to the brain/on board computer to control the air and fuel to the engine under all conditions for optimal performance, and the emission control system.
Trouble shooting comes with several options. Fortunately most vehicles since the start of the electronic fuel injection systems, that would be everything since the end of the carburetor, comes with some description of an on board diagnostic system for trouble shooting the sensors and such.You can purchase a diagnostic tool, and you will need to purchase a Haynes or Chiltons Manual for your year make and model which will tell you what all of the different codes mean. You can find these at any of the auto part chains such as Auto Zone, Discount Auto Parts, Pep Boys etc. Most of these stores will test your on board diagnostics with their tool free of charge. The Manual never hurts to have in your possession as it covers mostly everything from A to Z for mechanical and electrical repair and troubleshooting. Some vehicles have a way of giving you error msg's by a series of turning the ignition key on and off a certain number of times, and giving a code by a series of an in dash light blinking and pausing, this would also be covered in the manual for your make and model.
Hope this helps,
Posted on Nov 25, 2008
Your front pump in the transmission could be going bad. Check the transmission fluid for level and condition. The fluid should be bright red and not burnt (dark in color like burgandy). Best thing to do is take it to a transmission shop and have them check your truck for DTC codes with a Tech 2 scanner and have them do a transmission line pressure test. The whining can also indicate low on transmission fluid and that's bad, you may have burnt some of the clutch packs already and shorten the life of your transmission. Good luck and keep me posted, be glad to help.
Posted on Jun 28, 2009
At the bottom of your transmission there is a large square/rectangular pan (depends which trans you have). Have a large drain pan to catch 5 to 9 liters/quarts of transmission fluid. Undo all of the retainer bolts and carefully lower the pan (this can get messy for the unexperienced) .
In some cases the rear transmission mount may need to be undone and the rear of the trans lifted to allow clearance for the pan to be slid past the crossmember.
Replace the trans filter too!
Posted on Oct 31, 2009
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