possible causes of car shutting off while driving and then not turning over until starter is jumped?

30

Asked by Apr 12, 2016 at 12:50 PM about the 2002 Mercury Sable LS

Question type: Maintenance & Repair

4 Answers

2,795

This sounds like a bad electrical condition. It could be a severely depleted battery (the lead plates corrode and break down and cause shorts inside the battery) or alternator is failing or just bad grounds in the underhood wiring.

30

battery is new; alternator voltage checks fine and others have said bad grounds in the wiring; what's the best way to find bad grounds when no codes come up?

2,795

Just start tracing them out by site and take them apart, clean both mating surfaces up with a fine grit sandpaper or emory cloth and put them back together. Most grounds that fail are usually in the engine compartment and are usually a black wire that bolts to the engine and or body with a self tapping screw or nut & bolt. You can also find the type that are made of flat braided wire with either an eyelet that gets bolted down, or a clip with small teeth on the ends that slip over a sheet metal part. The last type tend to fail a lot. I once owned a chrysler mini van that had so many electrical gremlins in it, that I took a #10 green coated wire, and ran it around the engine to different mounting points, then to several different mounting point on the body in the engine compartment and finally to the battery ground and never had another electrical problem again.

1 out of 1 people think this is helpful.
2,795

You can also google wiring diagrams for your car and find just about every ground wire on the vehicle on those, or at the very least, buy a Haynes Manual for your car if you do your own repairs. One last thing, if you only tested the alternator voltage coming out of it with a meter, it does not mean it is good, sometimes as they heat up they make and break connection causing voltage spikes or drops & I have even had more than one of them test as good at auto parts stores, when in fact they were bad, after heating up.

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

Sable

Looking for a Used Sable in your area?

CarGurus has 1,176 nationwide Sable listings starting at $1,990.

ZIP:

Search Mercury Sable Questions

Mercury Sable Experts

#1 JP1956
JP1956
Reputation 580
#2 Tom Demyan
Tom Demyan
Reputation 480
#3 Guy Outland
Guy Outland
Reputation 360
View All

Related Models For Sale

Used Ford Taurus
368 Great Deals out of 22,720 listings starting at $1,499
Used Mercury Grand Marquis
32 Great Deals out of 2,236 listings starting at $1,500
Used Ford Crown Victoria
7 Great Deals out of 1,496 listings starting at $2,900
Used Toyota Camry
1,525 Great Deals out of 101,602 listings starting at $700
Used Honda Accord
1,264 Great Deals out of 78,832 listings starting at $969
Used Chevrolet Impala
998 Great Deals out of 36,811 listings starting at $1,800
Used Buick Regal
209 Great Deals out of 11,280 listings starting at $1,995
Used Ford Explorer
1,506 Great Deals out of 74,212 listings starting at $985
Used Ford Focus
1,301 Great Deals out of 60,647 listings starting at $1,295
Used Honda Civic
1,173 Great Deals out of 67,654 listings starting at $1,500
Used Buick LeSabre
9 Great Deals out of 2,368 listings starting at $1,768