Ross-N-Chicago
Elite Explorer<br><img src="/forums/images/stars4.
- Joined
- November 13, 2001
- Messages
- 610
- Reaction score
- 0
- City, State
- Chicago, IL
- Year, Model & Trim Level
- '91 XLT 2wd
Here is scenario as best as I can describe..
Tranny has worked flawlessly for 200K+ miles with regular fluid/filter changes every 15-20K, dino ATF
I swapped in Amsoil's ATF and a remote filter about 3000 miles ago and have changed remote filter at 300, 1000 and 1500 miles to make sure any debris was caught. Performance during that time was SLIGHLTLY improved.
Approx one week ago I have some sluggish starts out of first (in OD) early morning but clears up when warm. As the week progresses I begin to feel the suggishness at 50mph when the OD kicks in and I have to give plenty of gas to get out of the "dead zone" at 1500-1800 rpms. When the rpms are up I'm fine.
Last Thursday the new cat converter goes on (sitting around for ages) and I attribute the poor tranny performance to fuel/exhaust issues (no CEL) and replace the following based on searching this site for hours: TPS, FPR, O2 sensor and swap alternators b/c of low voltage reading at MAF. Performance doesn't get any better.
On the way home tonight I noticed that the rpms would increase when I shifted from D to R. So I did it again to be sure and the rpms do go up. There is also a slight sound, like a metallic whine/howl when I come to a stop.
I pray to God that this is just a modulator issue, servos or possibly bad U Joints or else. Fluid level is perfect and still cherry red. Please respond to this with any help given the above...
Ross
The only code its thrown was 122 for low TPS voltage.
Tranny has worked flawlessly for 200K+ miles with regular fluid/filter changes every 15-20K, dino ATF
I swapped in Amsoil's ATF and a remote filter about 3000 miles ago and have changed remote filter at 300, 1000 and 1500 miles to make sure any debris was caught. Performance during that time was SLIGHLTLY improved.
Approx one week ago I have some sluggish starts out of first (in OD) early morning but clears up when warm. As the week progresses I begin to feel the suggishness at 50mph when the OD kicks in and I have to give plenty of gas to get out of the "dead zone" at 1500-1800 rpms. When the rpms are up I'm fine.
Last Thursday the new cat converter goes on (sitting around for ages) and I attribute the poor tranny performance to fuel/exhaust issues (no CEL) and replace the following based on searching this site for hours: TPS, FPR, O2 sensor and swap alternators b/c of low voltage reading at MAF. Performance doesn't get any better.
On the way home tonight I noticed that the rpms would increase when I shifted from D to R. So I did it again to be sure and the rpms do go up. There is also a slight sound, like a metallic whine/howl when I come to a stop.
I pray to God that this is just a modulator issue, servos or possibly bad U Joints or else. Fluid level is perfect and still cherry red. Please respond to this with any help given the above...
Ross
The only code its thrown was 122 for low TPS voltage.