Notices
1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Question About The Intertia Switch

Thread Tools
 
Search this Thread
 
Old Jul 30, 2008 | 07:06 PM
  #1  
bronco-man's Avatar
bronco-man
Thread Starter
|
Freshman User
Joined: Nov 2007
Posts: 36
Likes: 1
Question About The Intertia Switch

Hi , I Have A 1987 Mercury Grand Marquis 5.0 , The Car Ran Out Of Gas When I Got To Work, Right After Work I Put About 8 Gallons Of Gas In The Tank And Engine Will Turn But Not Start. My Buddies And I Checked The Fuel Pump Relay And It Activated When Key Was On , Took Off The Intertia Switch And Bypassed The Wires And Still No Start Also Found A Very Small Pin Hole On Bottom Of Fuel Tank. Maybe The Fuel Pump Went Bad, Tow Car Home And Started Taking Off The Gas Tank , Took All The Gas Out , Patch The Pin Hole On Bottom Of Tank, Took Fuel Pump Off, Bench Tested And It Activates /vacuums As It Should.
I Have A 1985 Marquis For Parts And I Used Its Fuel Pump Which Is Also Working Fine (i Did Not Install The Original Pump From The 1987 I Install This Pump From The 1985) Put Everything Back Together And Still No Start, Reaplced The Intertia Switch With The 1985 Mercury Parts Car"s And It Finally Started, When Car Is Running I Can Hear The Fuel Pump Activating The Whole Time .back Before Replacing The Pump/inertia Switch When I Used To Turn The Key On Before Starting I Could Hear The Fuel Pump Activate Once And Stopped But Now I Can Hear The Pump Running All The Time While Engine Is Running??? What Could Cause This?
 
Reply
Old Jul 30, 2008 | 08:15 PM
  #2  
subford's Avatar
subford
Fleet Owner
20 Year Member
Photogenic
Photoriffic
Top Answer: 1
Joined: Aug 2005
Posts: 23,668
Likes: 301
From: Easton,Ks
That is the way it works, runs all the time the engine is running or cranking and for one second when you first turn on the key and not cranking the engine.
 
Reply
Old Jul 30, 2008 | 08:19 PM
  #3  
bronco-man's Avatar
bronco-man
Thread Starter
|
Freshman User
Joined: Nov 2007
Posts: 36
Likes: 1
Ok, Thank You , I Had Really Not Noticed This Noise Before When I Opened The Trunk. (little Too Noise)
 
Reply




All times are GMT -5. The time now is 06:40 PM.

story-0
5 BEST / 5 WORST Ford Daily Drivers of the 21st Century

Slideshow: The 5 best and 5 worst Ford daily drivers of the 21st century.

By Joe Kucinski | 2026-06-23 08:55:01


VIEW MORE
story-1
10 Fords to Drive Before You Die

Slideshow: 10 Fords to drive before you die.

By Joe Kucinski | 2026-06-22 14:29:44


VIEW MORE
story-2
3 Best / Worst Features Of The 2025+ Ford Expedition

The latest Expedition is quite popular, but it certainly isn't perfect.

By Brett Foote | 2026-06-22 14:23:19


VIEW MORE
story-3
10 Ways Ford is LOSING to the Competition

Slideshow: 10 ways Ford is losing to the competition

By Joe Kucinski | 2026-06-15 09:52:01


VIEW MORE
story-4
Top 6 Best Deals Available on New Fords & Lincolns Right Now

Some great targets in today's expensive world.

By Brett Foote | 2026-06-15 09:35:19


VIEW MORE
story-5
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.

By Verdad Gallardo | 2026-06-12 11:01:55


VIEW MORE
story-6
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-7
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-8
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-9
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE