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On a grand marquis could a how do you know if your fuel pump is broken or not working?
Wiki User
∙ 16y ago
Most injected engines have a fuel pressure test port. Borrow, rent or buy a fuel pressure gauge and connect it to the test port. If you're getting zero or low pressure when you're trying to start the engine, that's probably the problem.
Wiki User
∙ 16y ago
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You have no heat in your 1994 mercury grand marquis?
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don't know.
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check fuse
