my car went from running great to falling flat on its face an my fauther and myself cant figure out why i used to be able to burn my tires from a stand still all the way through 1st gear just by stepping on the gas now it kinda bogs until 2500 rpm then pulls weve checked and rechecked the timing as well as carb tuning
ive bought a new distribuitor,wires,plugs,cap,rotor,carb,and even have a freshly rebuilt tranny and we still cant figure it out i have a new timing chain setup in the garage ready to be put on and im doin that today but our problems are mind boggeling can anyone please help we cant for the life of us figure out whats killing my baby

 

Is your fuel pump working properly ? Check your fuel pressure with a fuel pressure gauge .

When's the last time you changed your fuel filter ?

Check all your vacumn lines . Have any leaks ?


Hope this helps ! Goodluck !

 

Torque converter stuck in lock up can cause those syptoms.

~M~

 

well i took it out tonight after tuning it in again and of course no power from idle to 2500rpm i got home popped the hood and my driver side exhust manifold was red cherry hot now i know my exhust isnt free flowing any more causing huge amounts of backpressure what could cause this what should i look for

 

Catalytic converter clogged. After running the car look under it and see if the cat is glowing.

 

wouldn't the car stall if the converter was stuck on lock?

 

A V6 would, yes, but a V-8 would just suffer a major "power loss".

 

no i have no cat on my car so it couldnt be clogged how can i tell if my converters locked and how could i unlock it if it is

 

The best way to check the converter is to drive at about 50-60 MPH steady speed. Then while keeping your foot on the gas, tap the brakes while watching the tach. When the bakes are applied you should get a rise in RPM on the tach, this indicates that the torque converter unlocked, when you let off the brakes the RPM will drop, indicating that the torque converter has locked up.
If it doesn't work (unlock/lock) then you'll need to do some troubleshooting to find out why eg; ECM is not telling it to lock up, the TCC isn't getting voltage to lock up or the TCC is bad.
The TCC is inside the trans and you can change it yourself, its a messy job and you'll be laying on your back under the car staring at the trans.

~M~

 

could a bad o2 sensor be causing this?????

 

Its possible, but I'd think that if it was bad enough to make one of your manifolds glow red it would have set a code. But who knows, the ECM never seems to do what you expect when things go wrong.

 

COULD I HAVE A CLOGGED TRANNY FILTER WOULD THAT CAUSE THESE NO POWER TILL 2500 RPM SYMPTOMS