94 Issues

[kymagred]

Starts fine. While driving home and going up hill, running 3000 rpm runs fine. After rpm drops to 2500 rpm it acts like it has no power, missing, try to accelerate it wont help. Let off the gas, then accelerate it will run fine, until rpm drops back 2500. I have tried different type of gas, no help. Where do I look next? Thanks Tony

[denisb]

EGR, torque converter even Possibly a plugged up catalytic converter. I think we need more info.

When you say until it drops to 2500 rpm, does it drop by itself until it hits 2500 rpm (you keeping it floored)?

Does it go back up to 3000 rpm without you downshitfing?

Does it have enough power to pull itself up to speed until it hits 3000 rrpm?

[kymagred]

Originally Posted by denisb

EGR, torque converter even Possibly a plugged up catalytic converter. I think we need more info.

When you say until it drops to 2500 rpm, does it drop by itself until it hits 2500 rpm (you keeping it floored)? By its self, like the over drive kicks in.

Does it go back up to 3000 rpm without you downshitfing? I just let off the gas, then I'm able to speed back up.

Does it have enough power to pull itself up to speed until it hits 3000 rrpm?

Yes

My replys are in bold letters, thanks.

[kymagred]

I changed the fuel filter and did not help. What next??

[denisb]

Kinda sounds like it might be a torque converter issue. If you drive at the same RPMs an not use your overdrive (slower speeds, same RPM), does it drop down also? In other words, I'm wondering if your problem doesn't happen as your torque converter locks up.

If there's any tranny experts here, feel free to pipe in.

Denis

[kymagred]

I drove up the same hill while in "regular drive" and it still lost power after the RPM's droped to 2000 from 3000. I did scan for codes and found "172 heated 02 1st bank". Could this be the only thing wrong?

[denisb]

Could very well be. A bad O2 could be making it run rich on fuel (among other things). Any black smoke coming out of it when this happens?