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This car has auto trans. After the car is at operating temperature it will not accelerate. From a stop it takes like 10 seconds for it to start to come up to speed (accelerator on floor). The car has new wires, and plugs, and I haven't seen any misfire from the wires. I have sprayed the TB with TB cleaner, and I still have an issue. I haven't found any vac. leaks at all. What should I be looking for?
 

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Air cleaner plugged
Fuel filter plugged
Fuel pump failing
Fuel pressure regulator failing
Timing is off cuz the belt is bad and slipped
Check for codes
Exhuast plugged

Just to name a few. Pick the easy stuff first and keep us up on what you find......
 

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93pittescort said:
This car has auto trans. After the car is at operating temperature it will not accelerate. From a stop it takes like 10 seconds for it to start to come up to speed (accelerator on floor). The car has new wires, and plugs, and I haven't seen any misfire from the wires. I have sprayed the TB with TB cleaner, and I still have an issue. I haven't found any vac. leaks at all. What should I be looking for?
I'll assume from this that everything functions correctly when cold?

Do the engine RPM's respond to the accelerator properly when warm, or is it very sluggish?

If RPM's are responsive, but acceleration is not, check transmission fluid. This is exactly what caused Me to replace My auto tranny with a 5 speed. It would function perfectly when cold, but after warm up, nada. turned out that the tranny was burnt, and once everything warmed up, the clutch packs didn't have enough grab.

If the engine responds sluggishly when warm, but is responsive when cold, check for intake and vacuum leaks, check plugs and spark (failing coil-packs can be a pain to diagnose). And don't forget Ben's list as well.
 

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Go - No Go

Be sure and check that Catalytic Converter ( also known as a 'Cadillac Converter' where I come from ) especially if your car burns any oil. I had one once that clogged up and would only let the car IDLE. Any attempt to go more and it would just stall. I finally tried disconnecting at the manifold and revved it right up. My brother had one clog and you could hear any leaks ahead of it 'whistling' like mad. We took it off and kind of 'reverse flushed' it with a V-8 exhaust, then ran it another 10,000 miles.
Study your exhaust flow real good, and if it looks like that may be it try disconnecting it at the manifold and starting it up. ( I don't know about trying reverse flushing, that's up to you and it doesn't always work. )
 
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