Car stalls while going down the highway then restarts immediately and runs fine

Asked by jim Nov 22, 2017 at 01:58 PM about the 1999 Buick LeSabre Custom Sedan FWD

Question type: Maintenance & Repair

Would a bad ignition module cause a car to stop
while going down the highway and then
immediately restart when you hit the switch again,
it will just shut off like you turn the key off but then
we'll restart as soon as you hit the switch. I'm
trying to determine if it's the crankshaft sensor or
the ignition control module. Have good spark at all
three coil packs, did a fuel pump pressure test has
good fuel pressure new fuel filter. But the cost of
the ignition module is why I'm just not replacing it
it's about $150. So I'd like to try and find out for
sure if that's what it is or if that even could be the
problem

1 Answer

45,185

ignition module is a good guess- they are often erratic until they fail completely-

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