Skip to main content

Help 4l60e constant shifting

97 chevy 5.7l vortec. Backfired through intake and blew pcv valve line off the intake. Drove it 20 miles not knowing it was off, abnormally high idle. Reconnected line now i get a back and forth 3rd to 4th gear shift. Rpm amd speedo jump around when this happens. Rebuilt trans 6000 miles ago. Tested all solenoids in tranny, all good. No Cel no stored codes. Any ideas? Thanks

Answer this question I have this problem too

Is this a good question?

Score 0

コメント:

Also it doesnt always do this, sometimes it does perfect. Other times it does it right off the bat from first start up.

by

Add a comment

Android 修理キット

交換用スクリーンやバッテリーの修理キット

ショップを見る

Android 修理キット

交換用スクリーンやバッテリーの修理キット

ショップを見る

1 件の回答

Most Helpful Answer

Hey Lee.

Could be throttle position sensor issue (harness and/or wiring included). Throttle plate could have carbon buildup around it’s edges, as well. Also make sure vacuum lines and connections are sound.

Hope this might help.

Was this answer helpful?

Score 2

コメント:

It did throw a tps code 1 time and 1 time only. Erased it and it hasnt came back. I will replace the tps and see what happens.

by

Add a comment

Add your answer

Lee stevens will be eternally grateful.
View Statistics:

Past 24 Hours: 0

Past 7 Days: 0

Past 30 Days: 1

All Time: 21