Car Repair<

Car Stalls under certain conditions

Few days ago coming off x-way I started to lose acceleration and then a loud pop and car died. Turned out one of my mufflers blew on my 87 Lincoln. Half of the bottom of muffler exploded. Was a real windy day. Mechanic told me probably too much air and had gas settled in system which caused high compression and blew muffler. OK, makes sense. Now today I'm doing city driving, another windy day and coming down from 35 mph to approx 25 mph on the downshift I lost compression, car kicked some and then stalled. Waited 20 minutes and it started, but had to drive with both feet for a while to keep running. After 10 minutes or so it runs fine. QUESTION is; could blast of air from street be choking me out and not getting proper air/fuel mix and cause stall? Runs perfect otherwise. This only happened twice. What might I be checking out that could cause this if not just freak blasts of air? First to answer your question cold air from the street can not force its way into the engine and cause an air fuel mixture problem. It sounds like you may have an ignition problem causing loss of spark at times. This can be caused by a faulty ignition module, ignition pick-up, ignition coil or a wiring problem. This will be all but impossible to find unless the car is acting up at the time of diagnosis. With the engine running at idle you can LIGHTLY tug and pull on the wires going to the ignition module at lower part of the dist. and see if the engine stalls or cuts-out. This would indicate a poor connection at the module or a bad module. With the engine off remove the coil wire from the coil to the top of the dist. cap and check the terminals for corrosion, clean or replace as needed. Also check the small ground wire at the negative battery terminal, this is the main ground for the on board computer, it should be tight and clean. The main problem we have here is we don't know if you're loosing spark, loosing fuel or getting too much fuel when the car acts up. The next time it stalls out and wont start you may want to check for spark from the coil wire at the dist. cap end. If you don't know how to do this or are weary of getting shocked than please don't try this.

Good luck. Thanks Venturi,
You know it comes to me now that after the stall I pulled the distributor wire going into cap and then pushed it down tighter. It didn't look like it was firmly attached to cap. After this the car did start. I'm thinking that the air/fule had setteled but it makes more sense that I didn't have good wire connection. I'm going to get another distribtor wire and re chek my negative terminal wire also.
I'll let you know.
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