HELP : More about my top speed problem
ok..so I'm still having odd top speed issues.. and so after pulling the EFI fuse yesterday it still has the same symptoms...
ECT : off O/D : on 89 octain even on flat roads I get up to 69-75 but I can't hold it.. the overdrive kicks in and lowers my RPMs to ~2800 and then I loose speed... I can gun it and the tranny kicks down and my RPMs go to about 4000, I gain speed again... but once I back off the gas a bit, the RPMs go back down and I loose speed. it seems like the speed it likes to be at without downshifting is ~64.. I don't have the egg smell so I don't think the cat is bad... anybody have any ideas? please? |
Have the rear brakes been changed or adjusted recently?
|
Originally Posted by nfenwick
Have the rear brakes been changed or adjusted recently?
|
Shouldn't the ECT be "on" and the overdrive "off"?
|
Do you have a mechanical fan? If so check your fan clutch, could be frozen.
|
Originally Posted by Brett636
Do you have a mechanical fan? If so check your fan clutch, could be frozen.
|
Do a tune-up:
Plugs Wires Rotor Cap Fuel Filter Air Filter Redline S1 Fuel system cleaner Check your timing - if it's too retarded (haha) you will definitely be losing power. Do that stuff first then get back to us. :bounce2: |
Sounds like the problem is that once you get to that speed your throttle position is at the 'kick-down' point - it thinks you want to go faster (you do!) and you don't have the "oomph" to do it without a lower gear. Same way a Vette with a six speed can attain it's top speed only in 5th, not in 6th - need the rpms for more power. On older vehicles I would think adjusting the kickdown rod is in order... Is your Throttle Position Sensor adjustable? Or do you just need a tune up as AgRunner suggests?
|
All times are GMT -8. The time now is 05:14 AM. |
© 2024 MH Sub I, LLC dba Internet Brands