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1997 mercury grand marquis Crank no start

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Old 06-07-2021, 10:23 AM
j.ollgrimes@gmail.com's Avatar
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Default 1997 mercury grand marquis Crank no start

I replaced the fuel pump with an aftermarket pump, so the fuel gauge isn’t accurate and replaced the fuel filter a while ago. The car randomly cranks no starts and after sitting for a day or two it will start right up. I’m trying to pinpoint the problem area. Any help in this matter would be greatly appreciated.
 
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Old 06-08-2021, 04:38 AM
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Default Hope this helps

I would start by checking the computer for codes then I would go through the wiring especially under the hood where the fuse boxes are they might be a little corroded or something
 
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Old 06-08-2021, 11:20 AM
j.ollgrimes@gmail.com's Avatar
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Default

Originally Posted by Josephmorrison
I would start by checking the computer for codes then I would go through the wiring especially under the hood where the fuse boxes are they might be a little corroded or something
thanks for the advice, I’m going to check now. I did have a code p430 right bank threshold low. I believe my primary cat will need to be replaced. Thanks again!
 
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Old 06-08-2021, 12:51 PM
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Your welcome
 
  #5  
Old 06-08-2021, 12:54 PM
95 MERC's Avatar
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Default Wash That Cat !!

p430 code !??
Try washing the Cat -- go HERE for method:


Walker H-Pipe; MagnaFlow 2" Glasspax ; Walker Tailpipes -- Adds 22-24 Horsepower over stock (single) exhaust.
 
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