Notices
Ranger & B-Series All Ford Ranger and Mazda B-Series models

2000 Ranger not starting

 
  #1  
Old 10-27-2010, 09:05 PM
great8
great8 is offline
New User
Thread Starter
Join Date: Oct 2007
Posts: 11
great8 is starting off with a positive reputation.
2000 Ranger not starting

I have a 2000 Ranger 4.0 xlt that will not start. It has been running fine, has 77,000 miles. My son drove it and said the check engine light came on. I found he didn't get the gas gap on tight, so that took care of the light. The following week a couple times it would not start right up, it would turn over but not start. On maybe the 3rd try it would start and run fine. Then it started running rough, I found the number 4 plug tip broken inside the plug wire boot. So I changed all the plugs. It was fine for about a week again, then would not start. Checked for the fuel pump to come on before I tried to start it each time and found that when it didn't start, the fuel pump didn't start first. Pulled the bed off and checked for 12v at fuel pump harness. When turning key on found 12v at yellow wire. I don't have a wiring diagram to confirm thats the correct wire to have 12v at. Any suggestions? Sorry to be long winded, just wanted to lay foundation of problems. THX
 
  #2  
Old 10-29-2010, 06:47 PM
Rockledge's Avatar
Rockledge
Rockledge is offline
Post Fiend
Join Date: Jan 2003
Location: Connecticut
Posts: 9,748
Rockledge is a splendid one to beholdRockledge is a splendid one to beholdRockledge is a splendid one to beholdRockledge is a splendid one to beholdRockledge is a splendid one to beholdRockledge is a splendid one to beholdRockledge is a splendid one to behold
The FP circuit originates in the fuse/relay box located under the hood. The fuel pump relay (large relay #9 ) is controlled by the PCM. When the FP relay is engaged, 12V is sent from the relay (via DG/YE wire) to the Fuel System Cutoff Switch ("inertia switch") which is located inside the cab behind the passenger-side kick panel.

If the inertia switch is OK (not tripped), 12V then continues from the inertia switch out to the fuel pump motor (via PK/BK wire). The ground wire for the FP motor is BK/OG.

So at a minimum, you want to check for 12V at the PK/BK wire when it should be hot (Start and Run).
 
  #3  
Old 10-31-2010, 10:18 AM
pawpaw
pawpaw is offline
Moderator
Join Date: Jan 2004
Location: SW Va
Posts: 12,626
pawpaw is a splendid one to beholdpawpaw is a splendid one to beholdpawpaw is a splendid one to beholdpawpaw is a splendid one to beholdpawpaw is a splendid one to beholdpawpaw is a splendid one to beholdpawpaw is a splendid one to behold
Additionaly, the yellow/white wire is for the fuel gauge sender.

As Rockedge posted, the fuel pump motor is fed from the in cabin inertia switch, on the pink/black wire.

If you have 12 volts on the pink/black lead at the pump, but it won't run, inspect it's electrical connector for corrosion, or loose connections.

If thats ok, try thumping the pump & see if it'll wake up.

Try providing a good low resistance ground for the pump. If it starts then, suspect a corrupt pump ground connection, or wire. The pump ground lead is the black wire.

I have ground pont 103 as beeing under hood, drivers side, midway up on the inner fender, back close to the end of the power distribution box.
Mine has a green screw & two wires & lugs under it. It needs to be clean bright & tight, to make good connection.

More thoughts for pondering, let us know how it goes.
 
  #4  
Old 11-01-2010, 10:00 PM
great8
great8 is offline
New User
Thread Starter
Join Date: Oct 2007
Posts: 11
great8 is starting off with a positive reputation.
Thanks for the info. I found I did have 12v at harness connections at the pump, but pump would not turn on. By the way, the pump only gets 12v for about 2 seconds then drops to 6.5, strange. Checked the ground at pump seemed ok. Put the pump back in, it turned on. After doing that back and forth several times I replaced the hanger assy. Started right up and no longer runs rough either. So it really did need the fuel pump. Thx again for the help!
 
  #5  
Old 11-01-2010, 10:27 PM
pawpaw
pawpaw is offline
Moderator
Join Date: Jan 2004
Location: SW Va
Posts: 12,626
pawpaw is a splendid one to beholdpawpaw is a splendid one to beholdpawpaw is a splendid one to beholdpawpaw is a splendid one to beholdpawpaw is a splendid one to beholdpawpaw is a splendid one to beholdpawpaw is a splendid one to behold
OK. good feedback on your trouble shoot & to hear your "on the road again"!!!!
 
  #6  
Old 11-02-2010, 09:43 PM
great8
great8 is offline
New User
Thread Starter
Join Date: Oct 2007
Posts: 11
great8 is starting off with a positive reputation.
It's running great, thx again for the help guys!
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
meier63
Clutch, Transmission, Differential, Axle & Transfer Case
5
12-24-2014 10:04 AM
deputydog03
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
53
11-05-2013 03:41 PM
golley
4 Cylinder Engines
15
10-02-2013 09:53 AM
Fedexbill
Aftermarket Products
1
09-02-2011 12:56 PM
mel63
Explorer, Sport Trac, Mountaineer & Aviator
2
08-22-2006 11:13 PM


Thread Tools
Search this Thread
Quick Reply: 2000 Ranger not starting


Contact Us - About Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.