mr evil said:
I'm not sure this is even transmission related now.
Yesterday I went for a 40 minute run. I warmed the car before I left, but as I was trying to accelerate, the car kept losing power under any kind of load. It was worse at the beginning of the drive, but not near as bad by the time I was almost home.
It doesn't feel like trans. slip, it feels like loss of fuel or spark. It starts to die, then goes, cycling like that until I get off the gas. Seems to happen at about the 2500rpm area :?
I'm going to check ignition and plugs today as I hope it's that and not the trans giving up. I'll also try unhooking the lock up and see what happens. I don't think it's bad gas because I've filled from 2 different locations in the past week
The problem is getting worse and happening in all gears now.
Any other ideas as to what could be causing this, please post them
My 86' Regal with a 307V8 and 200-4R does the same things (I think). First, my original catalytic converter got clogged up and caused all kinds of drivability issues and it took a while to figure out. The car would surge on the highway (55MPH+), gain power lose power, etc., so we ended up changing the fuel filter. This helped at first, meaning that the filter needed replaced, but the symptoms came back, but worse. I couldn't get the car over 50MPH and overall felt like it had no power. It also made a "ticking" sound at low speeds. So I ended up putting a new fuel pump on, but again, this was not the issue, since the old pump seemed fine when I checked it after I took it off. The first start up after the new fuel pump was installed, the engine still ticked and I was about ready to haul the car to the junkyard.
Then out of the blue I thought about the catalytic converter. Took it off, hallowed it out, put it back on. Started the car up, no ticking. Took it for a drive and it chirped the tires from a stop and ran better than it ever did before. No major issues since, at least I have been able to cruise at 75MPH, where it runs its best.
Also, my transmission also seems to get "confused" at 45MPH with light pressure on the accelerator. The road I drive on goes from 50MPH to a 40MPH zone, and the car does great to get up through the gears while accelerating, but when I let of the gas in the 40MPH zone and piddle, the transmission seems to slip back into the previous gear (I believe 3rd back to 2nd). The engine revs for a second, then goes back into the higher gear. I haven't figured it out yet, I don't understand why the transmission would slip, it hasn't been beat, it is behind a 307 car. My theory is that since my engine is worn out that it isn't making enough power for the transmission/torque converter to function properly at all times.
