Engine stalls, PCM relay clicking - Ranger-Forums - The Ultimate Ford Ranger Resource

Ranger Products, Company, & Member Reviews Like a Ford Ranger product? Perhaps a product was not up to par? Did a member impress you? This is the sub-forum for you.

Engine stalls, PCM relay clicking

Reply

 
 
 
  #1  
Old 07-23-2018
Member
Thread Starter
Join Date: Jun 2016
Location: Hays, KS
Posts: 5
Intermittent stalling, trouble codes 300 340 500

UPDATED POST: I have a 98 2.5L 5speed manual. It is stalling intermittently while slowing to a stop, around corners, and at low idle. When it stalls I get a clicking on the fuel pump relay, and I can hear clicking inside the fuel tank. The engine will turn over, but won't fire. If I wait for a minute or so, it will start up. Or if I pull and reinsert the relay it starts. The fuel pump has over 300,000 miles. The codes 300, 340, 501 are for cam position sensor, vehicle speed sensor, and engine misfire. I've reset the inertia switch, the fuel pump relay and pcm relays are working, and both test 12 V at the socket.
 

Last edited by Bonkshizzle; 07-26-2018 at 07:34 AM. Reason: Update symptoms
Reply With Quote
  #2  
Old 07-23-2018
RF Veteran
iTrader: (1)
Join Date: Jan 2014
Location: Vancouver, BC
Posts: 10,489
AC Clutch relay(ACCR) is connected to PCM relay directly, pull out ACCR relay and see if problem stops

PCM relay is activated by the ignition switch under the steering column.

Battery"+"----------50amp fuse(engine fuse box)---------ignition switch----fuse 19(cab fuse box)------PCM Diode(engine fuse box)------PCM Relay----ground

PCM relay "clicking" means it isn't getting full 12v or full ground, check Fuse 19 and PCM Diode for clean connections
Look into the PCM relays socket
Look at the first PCM relay for marks on the pins, like arcing marks, bad connections
 
Reply With Quote
 
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
FMD
General Ford Discussion
1
10-31-2016 02:53 AM
jcam
General Technical & Electrical
4
04-28-2015 11:36 PM
Bassnectar
General Technical & Electrical
2
11-03-2013 06:33 PM
b3000help
General Technical & Electrical
3
03-21-2012 09:16 PM
gftaul
General Technical & Electrical
0
03-16-2011 08:01 PM


Thread Tools
Search this Thread
Quick Reply: Engine stalls, PCM relay clicking


Contact Us Sitemap Advertising Cookie Policy Privacy Statement Terms of Service

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.