tman44
New Member
- Joined
- May 2, 2023
- Messages
- 1
- Reaction score
- 0
- City, State
- Stockton , California
- Year, Model & Trim Level
- 2000 explorer xlt
Hey all, I was trying to do a compression test on my 2000 explorer xlt. I unplugged both coil packs, removed spark plugs and blocked open the throttle per the instructions in repair manual. Motor was only turned over four strokes. When I put plugs in and plugged coil packs back in engine ran rough and cat converter glowed red hot. My code scanner said #1 coil was bad, #2 coil was bad and #4 coil was bad. Did I do something wrong following the repair manual? Any information or advice would be appreciated.