Question about 1997 Mercury Grand Marquis

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What did I do

I needed to change the battery cable ends at the battery and decided to replace the entire cable; pos and gnd. I cut the old cables near the valve cover and ran the new cable to the starter, and grounding at a starter mounting bolt. Now none of the interior lights, the instrument cluster or door lock or window switches operate. The engine starts and I can drive it just don't know how fast I am going and don't know how much fuel is in the tank. None of the warning lights illuminate either. The only dash light I have is for ABS. What did I do?

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You have bypassed the underhood fuse boxes power supply from the battery. Use factor battery cables routed correctly DON'T "ROOT OBERG IT"

Posted on Apr 26, 2013

Testimonial: "I hooked the smaller wires to the fuse panel as it was before. All that changed was the ground cable itself. I was unsure of where it went (although now I know it went to the engine block) and I attached it to a starter mounting bolt. Aside from that the hook-up is identical. this is what has me scratching my head."


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: New charged battery in 2004 Mountaineer, but it won't start.

check the fuse

Posted on Oct 31, 2008

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SOURCE: Instrument cluster lights and tail lights went out

if its not the fuse then you have a bad headlight switch

Posted on Mar 13, 2009

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SOURCE: Ignition switch in the on position illuminates

sounds like your starter is locked up

Posted on Apr 14, 2009

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SOURCE: Difficulties removing 2002 Merc Gran Marquis

take out the whole starter,replace the solenoid and reinstall.
it is faster.

Posted on Jan 12, 2010

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SOURCE: 1994 mercury topaz starts and

hi there
this sure sounds like the computer is no good as i read above you have replaced it but new parts can be bad too i think you should take the computer back and get a different one maybe they gave you the wrong one or you just got another bad one hope this helps you have a great day

Posted on Aug 21, 2011

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