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Two possible reasons. One, the Alternator is bad and two, the battery has a dead cell in it. Advance Auto Parts offers free testing on both.
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∙ 13y ago
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Troubleshoot headlamps on 1988 grand marquis?
troubleshoot head lamps on 1988 grand marquis? Not working...fuses OK
Where is fuse for tail lights in 1988 Mercury Grand Marquis?
where is the fuse for tail lights in 1988 mercury grand marquis
How do you change the timimg belt on 1988 mercury grand marquis?
NO belt in the 302cid engine of a 1988 Mercury Grand Marquis. it is a chain with gears
How many gallons of gas can a 1988 Grand Marquis hold?
( 20 U.S. gallons ) according to my Chilton's book ( for a 1988 Mercury Grand Marquis )
Tank capacity of a 1988 grand marquis?
According to my Chilton's Auto Repair manual : A 1988 Mercury Grand Marquis has a ( 20 U.S. gallon ) gas tank
Why 1988 Dodge truck stopped running has new battery?
bad alternator ? its not charging the battery
Where is the circuit breaker for the power windows of a 1988 mercury grand marquis?
The 1988 Mercury Grand Marquis circuit breaker for the power windows can be found in the fuse box. The circuit breaker will be in the first column, third from the bottom.
You need to know the stereo wiring diagram for an 1988 mercury grand marquis?
The stereo wiring diagram for a 1988 Mercury Grand Marquis is available from a factory service repair manual. These manuals can be found online and PDF. format.
Is a 1988 grand marquis 5.0 engine the same as 1988 mustang 5.0 engine?
No. Same displacement but different compression, horsepower, etc. The Mustang engine had 220hp; the '88 Grand Marquis had 140hp (or 150hp w/ facotry dual exhaust).
Why is your 1988 Chevrolet truck with a 305 engine running of the battery only and not the alternator?
If it is running on the battery only then that means the alternator is not charging the battery.
What size motor does a 1988 Grand Marquis have?
I believe that is the 302 cubic inch ( 5 liter )
Where are the radio fuses on a 1988 Mercury Grand Marquis?
fuse box under steering wheel
