Electrical Issues Made for a Interesting Ride Home Tonight
#1
Team Mustang Source
![](https://themustangsource.com/forums/images/rank.gif)
![](https://themustangsource.com/forums/images/rank.gif)
![](https://themustangsource.com/forums/images/rank.gif)
![](https://themustangsource.com/forums/images/rank.gif)
Thread Starter
Join Date: October 13, 2004
Location: MD
Posts: 2,842
Likes: 0
Received 0 Likes
on
0 Posts
Electrical Issues Made for a Interesting Ride Home Tonight
I had a pretty interesting ride home tonight. About 8 miles away from my house the ABS dash light came on and I got a check the traction control message on the info screen. The car still seemed ok I tested the brakes and they felt fine. I drive a couple more miles and traffic got a little backed up well my radio dropped out. Then a few more miles my head lights turned off. Of course at this point I'm pretty close to my parents place so I am praying to make it there. I keep distance from the car in front of me and was able to get into my parents neighborhood where I lost all power. My father and I took a look at the car. I wasn't able to start it up until just a few minutes ago. We checked the battery and it's not getting a charge. I hooked the XCal2 up and got a P0340 and P0344 error code but I've had them for about a week. The car has been running fine um...well until now. Any thoughts as to what might be going on? I'm thinking alternator.
#4
Team Mustang Source
![](https://themustangsource.com/forums/images/rank.gif)
![](https://themustangsource.com/forums/images/rank.gif)
![](https://themustangsource.com/forums/images/rank.gif)
![](https://themustangsource.com/forums/images/rank.gif)
I found out the codes you show are for the camshaft position sensor.
Camshaft Position Sensor Circuit Malfunction
What does that mean?
This indicates that a problem was detected in the camshaft position sensor circuit. Since it says circuit, that means the problem could lie in any part of the circuit - the sensor itself, the wiring, or the PCM. Don't just replace the CPS (camshaft position sensor) and think that will definitely fix it.
Symptoms
Symptoms can include:
A code P0340 could mean one or more of the following has happened:
With a P0340 OBD-II trouble code, diagnosis can be tricky at times. Here are some things to try:
What does that mean?
This indicates that a problem was detected in the camshaft position sensor circuit. Since it says circuit, that means the problem could lie in any part of the circuit - the sensor itself, the wiring, or the PCM. Don't just replace the CPS (camshaft position sensor) and think that will definitely fix it.
Symptoms
Symptoms can include:
- Hard starting or no start
- Rough running / misfiring
- Loss of engine power
A code P0340 could mean one or more of the following has happened:
- a wire or connector in the circuit could be grounded/shorted/broken
- the camshaft position sensor may have failed
- the PCM may have failed
- there exists an open circuit
- the crankshaft position sensor may have failed
With a P0340 OBD-II trouble code, diagnosis can be tricky at times. Here are some things to try:
- Visually inspect all the wiring and connectors in the circuit
- Check for continuity in the circuit wiring
- Check the operation (voltage) of the camshaft position sensor
- Replace the camshaft position sensor as required
- Check the crankshaft position circuit as well
- Replace circuit wiring and/or connectors as required
- Diagnose/replace the PCM as required
#5
Cobra Member
![](https://themustangsource.com/forums/images/rank.gif)
![](https://themustangsource.com/forums/images/rank.gif)
![](https://themustangsource.com/forums/images/rank.gif)
#6
Legacy TMS Member
![](https://themustangsource.com/forums/images/rank.gif)
![](https://themustangsource.com/forums/images/rank.gif)
#7
Mach 1 Member
![](https://themustangsource.com/forums/images/rank.gif)
![](https://themustangsource.com/forums/images/rank.gif)
Join Date: November 30, 2006
Location: Columbia, Missouri
Posts: 571
Likes: 0
Received 1 Like
on
1 Post
I've had this happen too (not THIS 'stang, my '72). It is a sick feeling knowing your ride is dying while driving it. I had forgotten before reading your post and it all came back in a rush...
Good luck and hope this resolves it for you!
![Banghead](https://themustangsource.com/forums/images/smilies/banghead.gif)
Good luck and hope this resolves it for you!
#9
Many of us have had alternators go out, mine did too. Since I bought my 06 GT I couldn't let the car sit for 1 week without the battery going dead. One day I jump started it, ran it for about 5-10 mins, cut it off then tried to start it again with no luck. Then I went to jump start it again and when I hooked up the cables the alternator went up in smoke! Not figuritively, LITERALLY! It was a LOT of smoke everywhere! Scared the crap out of me! I replaced the alternator and the battery and have never had a problem since.
I just read another horror story about a guy with a Roush that had a similar incident. He took his to the dealer. They replaced the alternator and it went up in flames, severe fire damage. Fortunately mine didn't do any damage because I cought it immediately! Replace the alternator and (if needed) the battery and you'll be all set. -Joe
I just read another horror story about a guy with a Roush that had a similar incident. He took his to the dealer. They replaced the alternator and it went up in flames, severe fire damage. Fortunately mine didn't do any damage because I cought it immediately! Replace the alternator and (if needed) the battery and you'll be all set. -Joe
#10
Team Mustang Source
![](https://themustangsource.com/forums/images/rank.gif)
![](https://themustangsource.com/forums/images/rank.gif)
![](https://themustangsource.com/forums/images/rank.gif)
![](https://themustangsource.com/forums/images/rank.gif)
Thread Starter
Join Date: October 13, 2004
Location: MD
Posts: 2,842
Likes: 0
Received 0 Likes
on
0 Posts
Thanks everyone for your feedback. I have been busy with my best friends wedding all weekend and just got a chance to read the forum again. How much should I expect to pay for a new alternator?
#11
Legacy TMS Member
![](https://themustangsource.com/forums/images/rank.gif)
![](https://themustangsource.com/forums/images/rank.gif)
![](https://themustangsource.com/forums/images/rank.gif)
Join Date: August 14, 2005
Location: Spangdahlem Air Base Germany
Posts: 1,217
Likes: 0
Received 0 Likes
on
0 Posts
They are $300 - $400 for the stocker and about the same for aftermarket. Dustin installed an aftermarket one. See post #23 here:
http://www.modularfords.com/forums/s...ernator&page=3
And you can purchase the aftermarket one here:
http://www.lethalperformance.com/pag...lternator.html
http://www.modularfords.com/forums/s...ernator&page=3
And you can purchase the aftermarket one here:
http://www.lethalperformance.com/pag...lternator.html
#12
I am getting the P0340 code also, but I am getting surging at constant speeds (highway driving) and some bucking. No electrical issues at all.
Also out of warranty.
Replace the sensors?
Also out of warranty.
Replace the sensors?
Thread
Thread Starter
Forum
Replies
Last Post
ssjbuu
Repair and Service Help
6
8/28/15 08:55 AM