sailor

GM Transmission Mechanic In Orlando Area

8 posts in this topic

New to this forum.

2000 Southwind on Workhorse P30 chassis GM trans.

Looking for a transmission mechanic in central Florida, Orlando area.

Transmission starts out normal but after 15 minutes wont go into 4th.

Stays in 3rd the rest of the day or until I stop for at least 30 minutes

.

Just don't want a $100 an hour pro that never worked on a Chevy tranny before.

Thanks

Share this post


Link to post
Share on other sites

Sailor,

Welcome to FMCA.

I do not know of a Service Center in FL.

Could you post the the mileage and the last time you had the transmission fluid and filters changed for the group.

That information might help pin down the cause of shifting problem posted and how much work you might be looking at. Like a good flush and filters, shift solenoid or a pressure issue.

Good information helps determine what or how deep one needs to go to fix the problem.

Rich.

Share this post


Link to post
Share on other sites

146,000 miles.

Changed filter and replaced fluid with synthetic a short time ago.

Problems been around for better than a year.

Share this post


Link to post
Share on other sites

Sailor, if you have the 4L80e Transmission, you might want to change the engine fuel filter. A clogged filter restricts fuel flow and that restricts Torque / Horsepower that keeps the transmission from shifting into Overdrive.

If you have an Allison transmission, please post the model number of you transmission.

Rich.

Share this post


Link to post
Share on other sites

Think you should have the fuel filter changed, if it has not been replaced for awhile.

The engine temperature settles in after about 15 min. and the ECM is in control of the fuel / air mixture. Before the engine gets warmed up good the ECM is allowing for a richer mixture, that would off set the low fuel supply to a degree.

The filter would be a lot less expensive then a transmission job.

Rich.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now