Engine stalls?

Tiny
JTLOUDEN
  • MEMBER
  • 2005 FORD FREESTAR
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 159,000 MILES
Error code stated cam position sensor, replaced sensor but the problem still there, no other codes given still getting. Sensor code. Engine seems to run fine until you go above 2000 rpms and it stalls and the belt squeals, what are the other possible problems to cause this condition? This is my sister in-law's vehicle and trying to get it fixed.
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Thursday, October 28th, 2010 AT 11:52 AM

42 Replies

Tiny
KHLOW2008
  • EXPERT
Hello,

This sounds like a weak fuel pump but to be sure lets run this test when the engine stalls. What is the code number?

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

This guide can help as well

https://www.2carpros.com/articles/engine-stalls

Please run down these guides and report back.
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Thursday, October 28th, 2010 AT 12:49 PM
Tiny
JTLOUDEN
  • MEMBER
Exact code I got was P0340
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Thursday, October 28th, 2010 AT 2:13 PM
Tiny
KHLOW2008
  • EXPERT
Let's replace the camshaft sensor (CMP synchronisation) which if is shorts out can cause the engine to stall. This guide will walk you through the steps with the location of the sensor featured in the diagrams below.

https://www.2carpros.com/articles/camshaft-angle-sensor-replacement

Was the alternator ever replaced? Seems there were many cases of faulty alternators causing the problem.

https://www.2carpros.com/articles/how-to-check-a-car-alternator

Check out the diagrams (Below). Please let us know what you find. We are interested to see what it is.
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Thursday, October 28th, 2010 AT 2:56 PM
Tiny
JTLOUDEN
  • MEMBER
I believe the alternator was replaced in the past year, the engine is the 3.9L one thing I forgot to mention- unsure if it makes a difference- when I replaced the cam sensor made no difference so I took it off again cleaned the contacts of the connectors and cleaned with electrical contact cleaner where the sensor itself goes and reassembled it. And for about 1 minute thought that fixed it- ran above 2000 rpm to about 4000 rpm then it started stalling there then started stalling again just above 2000 rpm, she also just had the power steering pump replaced belt tensioner and belt
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Thursday, October 28th, 2010 AT 3:21 PM
Tiny
KHLOW2008
  • EXPERT
Since alternator was replaced before, I would suggest checking it first. Many technicians all over had encuntered a fault with the alternator trigggering P0340.
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Friday, October 29th, 2010 AT 7:31 AM
Tiny
TOM4EVER
  • MEMBER
My Ford Freestar SEL 2004 also is having the trouble code P0340. The car was started with the air conditioner on full blast. I don't know if that makes a difference. Twice (June 1st and July 15th). Both times the incidents were LIFE THREATENING. We had just pulled out of the church parking lot and were headed home, 20 miles away. We progressed 1/2 a block when the car engine died out and we had no power - with a line of impatient cars behind us. We managed to drive to my brother's house (normally a 5 minute drive). It took us 45 minutes - (turn ignition on - start up, then die). At this point I am so discouraged. We just bought this car in March 2010. We replaced the transmission 2 years ago ($3,000). Now the computer tester says P0340. My brother tested it then reset the computer. Now the car dealership cannot get a reading on it. The same thing happened on the first incident. Advance Auto tested it then cleared the computer. All mechanics cannot get a picture of this problem. So far Venters Ford in Ayden, NC has completed its 100,000 mile checkup. They have replaced a SOLONOID; all spark plugs; oil change. Two days after we paid Venters $559 for the service, the car began the same ENGINE trouble. We drove it back to VENTERS and they will not release our car back to us until they figure this out. However, they cannot get the CODE to come up, because in both instances the mechanics that tested it with their computer testers erased the codes. I did not know that I needed the printout in order to have it repaired. HELP!
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Sunday, July 22nd, 2012 AT 2:23 PM
Tiny
TOM4EVER
  • MEMBER
This is in addition to the comments of tom4ever (Jul 22, 2012). The alternator was replaced in 2010. We had to special order it to get the correct size, as the 4.2L Freestar uses a larger algernator than those sold at Advance Auto. It has worked but could it also be something to consider? I have no idea why VEnters Ford replaced a solonoid.
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Sunday, July 22nd, 2012 AT 2:28 PM
Tiny
RIVERMIKERAT
  • MEMBER
Check the alternator voltage when the engine RPM is brought over 2000 RPM. You mentioned a squealing sound. Where is that coming from? It could be a worn bearing in the alternator.
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Sunday, July 29th, 2012 AT 6:17 PM
Tiny
JURODRI
  • MEMBER
Im having the exact same issue, I thought it was a wet PCM, replaced the coil and the camshaft sensor, also I noticed that it behaves badly on wet weather, the belt starts making noise, my alternator was replaced 3 months ago, my ac too. I don't know what else to do.

Btw. Took it to a ford dealership, they told me it was the transmission. Because of the codes. P0340?

Any ideas?
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Saturday, July 19th, 2014 AT 12:06 PM
Tiny
RIVERMIKERAT
  • MEMBER
P0340 is related to the CMP-Camshaft position sensor not the trans.
Check head space on the sensor and pickup, check the wiring and connections.

For the belt squealing, check the belt tension. Also, remove the belt and check the bearings on the accessories by spinning them by hand with the belt off. They should spin freely and make no noise.

What do you mean by "it behaves badly in wet weather"?
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Sunday, July 20th, 2014 AT 9:09 AM
Tiny
JURODRI
  • MEMBER
When its rainy, the car loses power, sputters. It has a new belt and tensioner, they replaced them when I changed the AC and the alternator
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Sunday, July 20th, 2014 AT 6:59 PM
Tiny
RIVERMIKERAT
  • MEMBER
Ok, A belt squealing indicates a problem with the belt system, either the belt itself, the tensioner, bearings, or the pulley. What about the power steering pump?

Your description of what happens when it rains tells me there is a problem with on or more of the electrical connections. Make sure everything is properly connected and the plug wires are fully seated on the plugs. Make sure the coil is properly connected. Make sure the distributor cap is securely attached and not cracked.
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Monday, July 21st, 2014 AT 12:47 PM
Tiny
MEL931975
  • MEMBER
  • 2005 FORD FREESTAR
  • 3.9L
  • 2WD
  • AUTOMATIC
  • 84,000 MILES
I had a recall done on my 2005 ford freestar for the torque converter car ran perfect before now it keeps stalling and ford company is useless.I was driving one day and heard a grinding noise took the van to my mechanic he notices a bar fell off the intake manifold. Ever since than the car constantly stalls cant drive highway over 40 without the van shaking some days putting car in reverse its hard as hell and tha jerks once its in reverse. Brought it to ford and the guy told me the piece was a latch from the 3rd row seating that they also replaced. No code readings come up
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Wednesday, January 2nd, 2019 AT 12:51 PM (Merged)
Tiny
RENEE
  • ADMIN
Did this start after the recall was done, it would be the problem of the Ford dealer. If you have have problems with them you need to call Ford directly they will make the dealer fix it, here is the phone number 1 (800) 392-3673 please let us know how it goes so it will help others
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Wednesday, January 2nd, 2019 AT 12:51 PM (Merged)
Tiny
MEL931975
  • MEMBER
Yes it all started after recall was was done
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Wednesday, January 2nd, 2019 AT 12:51 PM (Merged)
Tiny
RENEE
  • ADMIN
Give the dealer a call because it is there fault, if you get any flack call the number above.
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Wednesday, January 2nd, 2019 AT 12:51 PM (Merged)
Tiny
MEL931975
  • MEMBER
I talked to the manager and I have to bring the van in tomorrow to hook up to diagnostic machine they are charging me 169.00 I dont think I should have to pay for the diagnostic if he comes back to anything they have done.I dont know ill let yous know tomorrow.
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Wednesday, January 2nd, 2019 AT 12:51 PM (Merged)
Tiny
KEN
  • ADMIN
Make the call to Ford directly 1 (800) 392-3673 let us know what happens
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Wednesday, January 2nd, 2019 AT 12:51 PM (Merged)
Tiny
EQUIP0091
  • MEMBER
  • 2005 FORD FREESTAR
  • 6 CYL
  • 2WD
  • 57,000 MILES
Car idols fine, put into gear it stalls, not all the time though
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Wednesday, January 2nd, 2019 AT 12:51 PM (Merged)
Tiny
WRENCHTECH
  • EXPERT
You may have a bad IAC ( idle air control) but try eliminating any vacuum leaks and cleaning the throttle body first. Remove the intake snorkel, have someone hold the throttle wide open for you and scrub the back side of the throttle plate and surrounding bore with an old tooth brush and some carb cleaner. Be sure to spray some into the small holes next to the throttle plate. That should help stabilize the idle. If it still has a problem, replace the IAC.
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Wednesday, January 2nd, 2019 AT 12:51 PM (Merged)

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