Skip the auto shop - Our mechanics make house calls

Q: Transmission issue 2008 Chevrolet Silverado 1500

asked by on

2008 chev Silverado 1500 4x4 4L60E . Truck shifts first and second when shifts to third it's like it goes into neutral , high revs no speed . Is this limp home mode ? Have changed fluid filter and two shift solenoids . First test drive after this it shifted all the way thought it was good then seemed to be as soon as the fluid got hot it slipped again and only had first and second . Internal problem ?

My car has 180000 miles.
My car has an automatic transmission.

Your transmission may have a defective forward sprag unit inside the transmission that needs replaced. Have the transmission mechanic follow technical bulletin 08-07-30-027 that the manufacturer put out in 2008. There is a list of failed parts and procedures that need to be followed. You may need a complete overhaul of the transmission in addition to the bulletin repairs. I recommend having this checked out by your local dealer in order to have this corrected appropriately.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: My truck has a knocking noise from a bad lifter

A bad lifter will not make a knocking noise. It will make a tapping noise. I would recommend having a qualified mechanic listen to the noise to see if it is a lifter noise, a piston rod, or main bearing...

Q: Will a bottle of Lucas transmission fluid fix my issue?

Hi there, thanks for writing in. Although Lucas makes an exceptional transmission fluid stabilizer, you should try to find out why the transmission is damaged in the first place. If the fluid level was drained to the right level and...

Q: Why does my radiator fan not come on soon enough in my 2004 Chevrolet Cavalier

Hi there. If the fan does not come on at all by itself then there is a problem within the electrical circuit. It can be a relay or a control issue from the computer. If the fan is coming on...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.