My 1991 Laredo XJ just died on me tonight. I was cruising home after work going ~40mph when the engine just quit. Pulled over and tried and tried and tried. Nothing. So now she's sitting there all alone in the cold night.
I have had a few stalls before, but never while the RPMs were up in normal running range before. Also, she's always come back to me in the past no problem. So, I was wondering if any of you kind folks would have any ideas before I have to call the wrecker and take her to a mechanic. Absolutely any help would be appreciated.
Here's a hint and you just verified it for yourself. Unplug every sensor in your engine compartment one at a time, flush the connectors with a good contact cleaner and plug them back in. Guards against future problems. 15 minute job and worth it.
Well, it appears the battle is not over. Now it starts every time... but the rpms jump around occasionally and she will stall out. Sometimes it will start again on its own, other times I have to put her in neutral and crank her up.
throttle position sensor most likely culprit for the sporadic rpm's. if you have to put it in neutral to get it to start sometimes, have someone verify your backup lights work. if not i will pretty much guarantee that your neutral safety switch needs to be cleaned and greased.
Same stuff you'll want to have around when you service your NSS anyway. When doing the unplugging and cleaning don't forget the two connectors going to the trans. They're between the right rear corner of the engine and the firewall. One big gray one and one big black one. Mine were filthy.