Motor should have its own internal breaker protection. Check the motor connection for consistent power to make sure everything is okay from that end. When the motor doesn't work, perhaps there is another circuit breaker involved. There is a circuit breaker (self setting I believe) for the power windows and power seats normally, located in the dash area somewhere. Don't know that the wipers have one.
Originally Posted by 91awd3.3
Perhaps the mechanism is jamming a bit. The motor may be cutting out against some resistance from the mechanism or weakness in the motor. I would suggest disconnecting the mechanism from the motor to see if you can get the motor to work consistently. If so, then lubricate the mechanism well and give it a try.
I suspect worn joints in the mechanism took a large enough hit to cause them to jam up or to bend slightly to cause them to jam up.
Last edited by Jeepman; 01-24-2009 at 01:49 PM.
2007 GC SXT - Magnesium - S&G - 3.8L - 173,000 kms
2002 GC Sport - Stone White - 3.3L - 358,500 kms
2003 Jeep TJ Sport - 4.0L - 279,000 kms