7.3l Powerstroke idle
Thread Starter
|
New User
Joined: May 2003
Posts: 6
Likes: 0
7.3l Powerstroke idle
I have an occasional problem with my Ford Gulfstream RV 7.3l powerstroke motor and need help. Ocasionally when slowing down almost to a stop the motor just dies. It seems to be more of a problem after driving at freeway speeds and then slowing for a turn or traffic. Once the vehicle gets down to 10 or so mph the motor just dies. This is quite dangerous as the steering and brake power also disapears making control difficult. It does not do this every time I slow down and not often at all when driving in town. No error codes have been found anf no warning lights are showing.
If you blip the throttle at the right time or keep your foot on the gas whilst braking the motor keeps going so I guess it is something to do with the idle control. The motor always starts imediatly after it has died but of course you have to put it into neutral or park to do this. Not easy if still rolling on the freeway.
Can someone help before I run into something or miss a turn due to no power to the steering.
John
If you blip the throttle at the right time or keep your foot on the gas whilst braking the motor keeps going so I guess it is something to do with the idle control. The motor always starts imediatly after it has died but of course you have to put it into neutral or park to do this. Not easy if still rolling on the freeway.
Can someone help before I run into something or miss a turn due to no power to the steering.
John
Thread Starter
|
New User
Joined: May 2003
Posts: 6
Likes: 0
7.3l Powerstroke idle
Thanks for the info
I had a previous problem where the lock up clutch in the torque convertor was not locking up and this lead to overheating of the transmission oil and a hugh repair bill. How can I check that the clutch is now unlocking and locking as it should.
With regard to the fuel filter it was changed about 7000 miles ago.
Regards
John
I had a previous problem where the lock up clutch in the torque convertor was not locking up and this lead to overheating of the transmission oil and a hugh repair bill. How can I check that the clutch is now unlocking and locking as it should.
With regard to the fuel filter it was changed about 7000 miles ago.
Regards
John
Posting Guru
Joined: Feb 2001
Posts: 1,465
Likes: 2
From: Indianapolis
7.3l Powerstroke idle
There is probably a plug in at the transmission for the lock up solenoid (you'll have to have a Ford service tech or a transmission man verify this) that you can unplug to keep the torque converter from locking up. Unplug it and take it for a drive. If the problem is now gone, either the solenoid is sticking or the valve that the solenoid actuates is sticking. If the problem is not gone and you have no codes in your computer (if your accelerator is the problem, it should throw a code) change the cam position sensor.
You can check the lock up feature of your torque converter several ways. Lock out your over drive and count the "shifts" -- first to second is 1, second to third is 2 and when the torque converter locks up is 3. Another thing you can do is when you are cruising along with the torque converter (presumably) locked, press down just a little on the accelerator while watching your tach. The tach needle should rise ever so slightly as vehicle speed increases (no down shift). If you gain 200 - 300 RPM imeadiatly, your torque converter is not locked.
If it is not the torque converter lock up feature and you have no codes, I'd put my money on the cam position sensor.
You can check the lock up feature of your torque converter several ways. Lock out your over drive and count the "shifts" -- first to second is 1, second to third is 2 and when the torque converter locks up is 3. Another thing you can do is when you are cruising along with the torque converter (presumably) locked, press down just a little on the accelerator while watching your tach. The tach needle should rise ever so slightly as vehicle speed increases (no down shift). If you gain 200 - 300 RPM imeadiatly, your torque converter is not locked.
If it is not the torque converter lock up feature and you have no codes, I'd put my money on the cam position sensor.
Last edited by The Diesel Dude; Jun 3, 2003 at 02:08 PM.
Thread Starter
|
New User
Joined: May 2003
Posts: 6
Likes: 0
7.3l Powerstroke idle
Thanks for your reply. You will apreciate running an American spec vehicle in the UK makes any problem much harder to sort out, especially as there is no Ford main dealers in the Country.
I will look for a plug in at the transmission but unfortunatly the vehicle is not fitted with a tach so the second option is not possible.
Where is the cam position indicator located and is it easy to change ?
Regards
John
I will look for a plug in at the transmission but unfortunatly the vehicle is not fitted with a tach so the second option is not possible.
Where is the cam position indicator located and is it easy to change ?
Regards
John
Thread
Thread Starter
Forum
Replies
Last Post
carl2591
1999 - 2003 7.3L Power Stroke Diesel
9
Jan 25, 2015 10:07 PM
mOROTBREATH
1948 - 1956 F1, F100 & Larger F-Series Trucks
27
Jan 13, 2011 05:53 PM
thpdpstxcity
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
4
Nov 9, 2003 01:06 AM
