Quote:
Originally Posted by nleonard52
I found this site doing search for a problem that started 5-17-02 with the car.
My car is a 2002 Chevy Impala 97,000 miles. I had the transmission serviced at around 50,000 miles by the dealer. It's just now started the hard shifts,heard the whining sound once. I noticed when it does the shifting problem the temp gauge will also increase some.I guess it's due to the slipping of the transmission getting hot due to it slipping adding extra heat to the cooling system.
I read these posts on using the Sea foam, changing the fluid, filter and a shift kit.
This car has the 3.8 liter engine so I'm assuming this has the 4T65E trans.
Can the shift kit be purchased at an Auto parts store or can you only get them from an online source? I'm still not sure which kit would be best for me, I only want the car to operate properly, no high performance
I haven't taken it to a dealer or transmission shop for a diagnosis yet.
I don't have a problem with doing the work myself, I have the tools etc.
Thanks in advance.
Norman
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Welcome to AF.
There is no guarantee a shift kit will work. It depends on how bad the PCS is and other variables but for the cost and DIY labor you have nothing to lose versus spending $500 - $2500 on tranny work. The shift kit helps shift timing and may preclude the P1811 DTC from setting or going into a high line pressure mode. Also, some have replaced the PCS but the issue remained. Other transaxle components can cause the issue like internal mechanical, clutch packs, valve body, etc.
Typically you get the shift kit on line. From ZZP Performance, Thrasher or Transgo, etc The kits vary on composition. Some even have the new accumulator springs.
All 2000 and up Impalas have the 4T65E autotransaxle. GM RPO code M15 or MN3.