Engine Hestiation 94' 1.6 AT - Toyota Nation Forum : Toyota Car and Truck Forums

sleepy_ep · 08-25-2010, 03:09 PM

I'm getting a barely noticable hestiation on my corolla at highway speeds, Previous owner says it may be a Vacuum issue, Vacuum Control Valve may be clogged or stuck??

Any suggestions?

Another quick question, If feels as if I am revving really high, I have no RPM

I shift into 3rd at about 80 KPH....Is that normal?

its a 1994 1.6L Automatic with 149,000 miles on it.

sleepy_ep · 08-26-2010, 11:09 AM

anyone?

***zythr*** · 08-26-2010, 06:25 PM

Maybe you should check it out to see if it is vacuum related. Regarding the High revving, does the tranny shift normally, and into lock up. Since it is the 3 speed, it would cause the engine to rev higher on the highway compared to the 4 speed.

94PrizmDD · 09-01-2010, 03:56 AM

Check your air filter, and replace your fuel filter if you haven't done so. Your transmission is fine. You most likely have a 3 speed. Since you have no 4th gear your car just over rev's. This is a good video check it out. Might help your situation

You Tube

sleepy_ep · 03-18-2011, 06:52 PM

sorry for the delayed response, but it turned out to be a plugged cat converter.