1992 Mercury Grand Marquis Q&A
1992 Mercury Grand Marquis Question: Check engine light coming on, temp gauge rising, O/D not working properly.
The temp gauge rises to almost max in town and on freeway. Check engine light coming on for a long time but mostly pulling a hill. Transmission sounds like it is neutral when in overdrive. Have replaced everthing to do with the temp gauge except the sensor and the gauge itself. I really can't afford to play process of elimination with the repair shop prices so high these days.I have two different mechanics and they are both stumped. Check engine light goes off as soon as I get close to the shop, therefore I haven't been able to get it on the scope to get the code to diagnose the problem.At the end of my rope and my wallet. Please help! - MamaLea
scan codes and post so we can adv - globalhelper