• Welcome Visitor! Please take a few seconds and Register for our forum. Even if you don't want to post, you can still 'Like' and react to posts.

truck wont start!!!!!!!!!!!!


1badstx

New Member
Joined
Nov 8, 2011
Messages
6
Reaction score
0
Points
0
Location
Mt. Pleasant, N.C.
Vehicle Year
1988
Make / Model
Ford
Engine Size
2.9l
Transmission
Manual
So i replaced both fuel pumps and fuel filter, new relay, and bypass my saftey shutoff switch and the truck has spark. but turn wont start!! It turns over fine but nothing good happens. plus there no fuel in the fuel rail. I got to get to work tomorrow i need help fast!!!!! ....and yes it has gas lol
 


Psychopete

Well-Known Member
Joined
Aug 10, 2007
Messages
3,201
Reaction score
29
Points
48
Location
FW, IN
Transmission
Automatic
sounds like the pcm is not controlling the relay. in a pinch, I'd be willing to bet it will run if you ground the Fuel Pump test on the diagnostic connector, but the pumps will run constantly as long as the key is on 'Run'. Not an issue since it is a return style system, but worth noting. Would get you to work and at least verify that is what is happening.
 

06RangerXLT

New Member
Joined
Jul 24, 2010
Messages
2,876
Reaction score
54
Points
0
Location
Georgetown Ontario
Vehicle Year
2006
Make / Model
Ford
Engine Size
4.0L
Transmission
Automatic
yes, when you bypassed the saftey shut off switch, it removes power from the fuel pump and i believe the injectors. it wont run unless that shut off inertia switch is connected. Its hardwired into the computer.
 

Psychopete

Well-Known Member
Joined
Aug 10, 2007
Messages
3,201
Reaction score
29
Points
48
Location
FW, IN
Transmission
Automatic
Bypassing the inertia switch has nothing to do with it, not unless it was making a bad connection which would prevent power from getting to the pumps. Get a wiring diagram and see, the circuit doesn't work like you've described.
 

Sponsored Ad


Sponsored Ad

Staff online

Today's birthdays

Member & Vendor Upgrades

For a small yearly donation, you can support this forum and receive a 'Supporting Member' banner, or become a 'Supporting Vendor' and promote your products here. Click the banner to find out how.

Latest posts

Truck of The Month


Shran
April Truck of The Month

Recently Featured

Want to see your truck here? Share your photos and details in the forum.

Follow TRS On Instagram

TRS Events

25th Anniversary Sponsors

Check Out The TRS Store


Sponsored Ad


Sponsored Ad

Sponsored Ad


Amazon Deals

Top