This is actually regarding my 1991 Geo Metro daily driver. It's a 3 cylinder with 96000 miles on it. I couldn't find any half decent Metro forums so I would really appreciate your help.

I was driving on the highway during slight ran. The first thing I noticed were the wipers working about half slower then normal. About 5 minutes later I couldn't maintain speed. It felt like I had a slipping clutch and fouled spark plugs. Whenever I tried to accelerate the car would only hesitate. Had the car towed home. It turned on without trouble. I left it running for 20 minutes without problems. I then took it out for a spin. The hesitation started again and the wipers were still slow. I turned it off and then it wouldn't turn on. I tried again 30 minutes later and it turned on ok. I've also noticed that the coolant indicator doesn't get to the mid point as usual.


This scenario obviously rules out the alternator or battery. I've checked all the fuses and scanned for codes but that's all good. Plugs were changed 25000 miles ago. Battery and plug wires are about 6 months old. I also cleaned out any corroded ground terminals I could find.