Ford Expedition:

won't start, plenty of battery power | Page 2

You are not logged in.

#11 8/17/2017 8:18 AM

TechHelp2
Administrator
Registered: 11/23/2009
Posts: 1258

Re: won't start, plenty of battery power

You first have to go to basics. You need spark, fuel and compression. First thing to check is for spark at the spark plugs. If you don't have spark the most common Item in the vehicle to fail would be the crank sensor. But check the whole system to be sure it isn't something else like bad or poor wire connections or other failed parts related to the ignition system.

If the vehicle has a key fob try to lock the doors with it then open the vehicle by hitting the open button. sometimes the immobilizer in the security system can get disrupted and cause the motor to not start.

Check all fuses to make sure there are no blown. There are many fuses for different systems, if one is blown the engine may or won't start.

Check for fuel pressure and the amount of fuel coming out of the fuel line. The fuel pressure should be about 30 to 45 psi.

If you have spark and fuel pressure then check for compression of all cylinders. Compression should be in the range of 135 to 150 psi per cylinder.

Having a scan tool can help. If you know anyone with a scan tool; check for any trouble codes stored in the computer. This can be a big help.

I hope this information help you.


realworldautomotive.com
car and truck information like nowhere else
Ford Expedition Recalls, TSBs and Service Information >> ALLDATA

Offline

 
Sponsored Links
ALLDATAdiy.com

The Leading Source of Professional Diagnostic and Repair Information.
E-mail Page
Print Page
Save or Share Information
ALLDATAdiy.com is the leading source of factory diagnostic & repair information specific to your car.

Powered by PunBB
Copyright © 2007-2016  RealWorldAutomotive.com

Save or Share Automotive Information
Custom Search