Level 2 Supporter
Join Date: Jun 2010
Location: Clinton Township, MI 48036
My Ride: 92 Spirit
Engine: 2.2 MPFI
Thanked 0 Times in 0 Posts
Weird Electrical / RPM issue...
Ok so old ladies car, '93 Spirit 2.5 auto flex fuel. When you turn on headlights or blower motor engine bogs for just a second, when cooling fan turns on car bogs down BIG TIME and once in a while RPMs won't pick back up till fan turns off?.. At first I instantly assumed bad ground! Being that the car has a new battery and alternator. So I went ahead and ran "the big 4" something us 80's-90's guys would do when hooking up a boom box car stereo, you run all 2ga or bigger power wire from the battery to the alternator, a ground to the body of alternator, and body & engine grounds to battery. This did not fix the issue :( The ONLY other electrical issue this car has is randomly a while back the dome light stopped working, and after testing it, it's because it lost its ground... can't turn it on with headlight switch nor opening any door, and if I just grounded it of course it would stay on all the time. I have no idea if these 2 issues coincide or not but EVERYTHING else about the car is absolutely perfect. Thanks for any help guys, cuz I am stumped!
I'd like to add when car surges or bogs down, doesn't seem to dim lights or affect anything but the engine speed... and once in a while when starting the car the air bag light will come on, and sometimes stay on while driving... again thank you for any help or suggestions!