Hi all,
I'm wracking my brain trying to figure out what the cause is :
Automatic transmission.
At the correct timing, its completely gutless. At slightly advanced timing, power is ok.
There is no engine knocking at the advanced timing setting.
RPM at correct timing hover around 650-700 in R or D. But no power here.
At advanced timing setting RPM goes to 1100 at warm starting,
then drops slowly to about 950-975 in P. Then hovers about 850-875 in R or D.
I tested the throttle body sensor in fully closed and fully open; this was within spec.
(I want a second person to hold the shim to test the slightly open position).
New spark plugs. The old ones were REALLY bad. Could not get the engine to hold RPM's at smog check. Changed the plugs and it passed with flying colors.
I don't remember when I last changed the air filter, but it's been driven only a couple thousand miles since then. And not in any kind of heavy dust. (Smog passed with this filter in).
Insulation around ignition leads seems to be ok (no spark anywhere along them when engine is running. I even grabbed them all after checking for arc with a screwdriver. No nasty shocks.
Kick down cable is disconnected b/c it gets stuck and the trans thinks I'm trrying to pass everyone on the road. Going to remove the cable and try clearing possible oxidation causing it to stick, before buying a new one (its raining a lot, so that's going to have to wait a bit).
Going to check for engine codes as soon as I can, but for now, this is driving me nuts...
Hopefully someone has some suggestions.
Thanks!
I'm wracking my brain trying to figure out what the cause is :
Automatic transmission.
At the correct timing, its completely gutless. At slightly advanced timing, power is ok.
There is no engine knocking at the advanced timing setting.
RPM at correct timing hover around 650-700 in R or D. But no power here.
At advanced timing setting RPM goes to 1100 at warm starting,
then drops slowly to about 950-975 in P. Then hovers about 850-875 in R or D.
I tested the throttle body sensor in fully closed and fully open; this was within spec.
(I want a second person to hold the shim to test the slightly open position).
New spark plugs. The old ones were REALLY bad. Could not get the engine to hold RPM's at smog check. Changed the plugs and it passed with flying colors.
I don't remember when I last changed the air filter, but it's been driven only a couple thousand miles since then. And not in any kind of heavy dust. (Smog passed with this filter in).
Insulation around ignition leads seems to be ok (no spark anywhere along them when engine is running. I even grabbed them all after checking for arc with a screwdriver. No nasty shocks.
Kick down cable is disconnected b/c it gets stuck and the trans thinks I'm trrying to pass everyone on the road. Going to remove the cable and try clearing possible oxidation causing it to stick, before buying a new one (its raining a lot, so that's going to have to wait a bit).
Going to check for engine codes as soon as I can, but for now, this is driving me nuts...
Hopefully someone has some suggestions.
Thanks!
