General Technical & Electrical General technical and electrical discussion for the Ford Ranger that does not fit in any other sub-forum.

2003 ranger 4.0 cam position/ecu issues?

Old Dec 18, 2025
  #1  
BC.03ranger's Avatar
Thread Starter
|
Member
Joined: Dec 2025
Posts: 3
Likes: 0
2003 ranger 4.0 cam position/ecu issues?

I just picked up a non running 2003 ranger, 4x4 automatic. It will crank but not start. Occasional the first attempt to start of the day it get a slightly sputter but that's its. There are no check engine code. Im getting good spark, the fuel filter has been replaced and the fuel pump turns on. The anti theft isn't blinking. And ive reset the inertia switch. Crank position sensor has been replaced. My cam position sensor seems to ohm out normall(450 ohms, and changed when you place it against metal) i am however not getting any voltage to the plug for the cam position sensor. Testing the wires from the plug the the main ecu plug and the check out good. Im leaning towards an issue inside the ecu. Any other suggestions?I should mention the guy I got it off of was driving it right up until it just wouldnt start one morning, the day before drove home fine. He through some time and parts at it then gave up, and that's where I picked it up
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
BC.03ranger
4.0L OHV & SOHC V6 Tech
3
Jan 29, 2026 08:19 PM
Rd1214
4.0L OHV & SOHC V6 Tech
1
Oct 27, 2022 09:14 AM
Quasimo1
General Technical & Electrical
0
Apr 9, 2019 06:10 PM
ackilys
General Technical & Electrical
2
Nov 28, 2017 09:19 PM
Dangerranger114
General Ford Ranger Discussion
4
Jul 21, 2017 02:04 PM


Thread Tools
Search this Thread

All times are GMT -6. The time now is 12:11 AM.