2001 Chevy Malibu I just rebuilt the top half of the motor (V6, 3.1L); new lifters and push rods, new plugs, wires, filters. Also flushed the transmission and refilled with new fluid. My problem is that it isn't getting power when I hit the accelerator and it won't go over 55 MPH. Any suggestions?

SOURCE: Chevrolet Malibu 2001 Transmission Flush or not

75,000 miles isnt alot of miles,unless they were mostly city miles. If you aren't experiencing any transmission problems,i would drop the pan,change the filter and whatever fluid the pan holds,and hold off on flushing the entire sytem.The clutches and bands sometimes don't do well when shocked with ALL new fluid that contains a certain amount of detergent.The only real problems i have seen with the total flush is on Dodge trucks of the 90's up to even 2000 and some later models,the transmissions use a governor pressure sensor,and solenoid,and i have seen many of them set codes after the flush,and the components having to be replaced with new.Black fluid isn't a good indicator.Brown fluid,is better than black.And red fluid is the best.

Marvin

• 85242 Answers
• Posted on Aug 01, 2008

SOURCE: car shudders at 40-55 MPH

How about the CV joint?? were they inspected for wear??

SOURCE: no power up hills

maybe your transmission needs to be overhauled..

SOURCE: Re-filling tranny fluid in a 2005 Chevy Malibu

There should be a fill cap locate drivers side down on top the drive axle. Check your book or call auto parts store for capicity

SOURCE: surging power lose

a maf sensor will cause this also,you can go to any auto parts store and buy the maf sensor spray. follow directions on can. make sure air filter is clean also. my car did the same thing and after I cleaned the maf sensor it has been fine. 3.1 engine, to check sensor, just unplug it and try it on hills or highway. the car will not run very good and may stall out, but if the car does not surge, the maf is the problem.