Failed oil pump pulley...the sad saga of
- Thread starter ByeEnzo
- Start date
Neilda
GT Owner
DanQ
GT Owner
I'm glad it worked out OK for you! Thanks for the pictures and update. I think inspection is a good idea. The quality of the pully doesn't look that great.
TifosiTed
GT Owner
ByeEnzo,
Thanks for the detailed post. Glad you dodged the bullet. After three years of ownership and three oil changes, I must admit I have never pulled the cover to look at the oil pump or the belt. Rest assured, this will become a standard proceedure for me from here on out.
Thanks for the detailed post. Glad you dodged the bullet. After three years of ownership and three oil changes, I must admit I have never pulled the cover to look at the oil pump or the belt. Rest assured, this will become a standard proceedure for me from here on out.
FourFather
GT Owner
Very nice thread. Thank you for taking the time and effort to share all that info with us. :thumbsup
Eddie:biggrin
Eddie:biggrin
Glen
New member
I am going to have to check mine! My oil pressure fluctuates a lot and when it gets down to 25 at idle it drops to zero and the check gauge light comes on. I haven't had any kind of unusual noises and was thinking it was the oil pressure sending unit. What is normal oil pressure at idle? I don't recall what it used to be.
- Aug 25, 2006
- 4,436
If the pressure fluctuates a lot then I would encourage you to pick up a sending unit and install it; it can be accomplished from the the top side with the belly pans in place.
If I can assist let me know
Takes care
Shadowman
Glen
New member
Yes please, I need a little assistance the ford dealer in my town is lame and can't come up with the part number for the oil pressure sending unit or the service manuals. So if you have the part number that would be great. Thanks
- Aug 25, 2006
- 4,436
I can get you the part number later in the evening however might I suggest that you contact Torrie on this forum as he likely stocks it and will have it at your dooor in a jiffy.
Swapping them is as easy as unplugging the harness and then backing one out and putting the new one in. If from the top side set some raps below it so as to catch the oil that will come out.
It is truly not a big deal.
All the best
Shadowman
The part number for the oil pressure sending unit is 4G7Z-9D290-AB
I will PM you regarding the manuals as I have some sets for sale.
Replacing the sending unit is easy. With the midpan off of the car, from underneath look up at the air conditioner compressor at the lower driver's side front of the GT. Just on the aft side of the compressor, you will see the sending unit with a two wire plug on it. Slide the red safety tab up which will allow you to squeeze and remove the plug. The sensor uses pipe threads to screw in.
I will PM you regarding the manuals as I have some sets for sale.
Replacing the sending unit is easy. With the midpan off of the car, from underneath look up at the air conditioner compressor at the lower driver's side front of the GT. Just on the aft side of the compressor, you will see the sending unit with a two wire plug on it. Slide the red safety tab up which will allow you to squeeze and remove the plug. The sensor uses pipe threads to screw in.
gt40builder
New member
Hello Enzo,
I believe the red lock tight will breakdown over time. The clearance in the splines will be an issue again over time as well. The best way to deal with it is to drill and tap a hole for a set screw. Then use a set screw with a nylon insert to keep it from backing out. This way you will have a positive lock against the splines. It would be best if everybody checks there pulleys too. The tensioner will make it seem as if all is good until it has worn enough to do what Enzo's car did.
Pete
After getting my car fixed I thought about the whole situation for awhile. The Ford dealer service department did the work on my car when the oil pump was replaced under warrantee. I figured the recently discovered pulley failure was either due to incorrect assembly or a faulty pulley. I finally decided to present all the info that is in this thread to the owner of the dealership (sent him a certified letter). I met with the service department manager and showed him the failed, ground up pulley. He pretty much shrugged his shoulders and denied any responsibility, which is what I thought would happen. Said he'd get back with me, which hasn't happened. Long stretch to think warrantee work would be warranteed itself. I doubt anyone on this forum uses this dealership in the Fort Worth area, but I will not be endorsing them. I know how I stand with them as a customer.
shesgotlegs
GT Owner
- Jul 20, 2006
- 1,183
Byeenzo, sorry to read about your misfortune. I had the exact same thing happen to me and fortunatly it was still under warranty.
The gear is definetly " a problem " and I believe and dare say " axle bolt scenario part 2 "
Wow! Someone else who had a pulley melt down. Glad you caught it. Did your pulley get totally "machined" like mine? Cheers, AC
Kayvan
GT Owner
- Jul 13, 2006
- 4,782
Fill out the dealer service quality survey Ford sends out. There is an area for a detailed written comment. I know for a fact these are read & responded too ESP if there is a problem.
There is also a regional service supervisor for the Fort Worth area; check out the Ford SVT forum... I'm sure someone has a number, name, email
On major issues factory engineers have even been referred
There is also a regional service supervisor for the Fort Worth area; check out the Ford SVT forum... I'm sure someone has a number, name, email
On major issues factory engineers have even been referred
shesgotlegs
GT Owner
- Jul 20, 2006
- 1,183
It was on it's way and we caught it just before a total failure.
It all started with a noise from the front of the engine that led us to an oscalating oil pump pulley gear/shaft.
It all started with a noise from the front of the engine that led us to an oscalating oil pump pulley gear/shaft.
soroush
Ford Gt Owner
- Aug 8, 2007
- 5,256
bye enzo,
did you ever sort out what was going on with the timing chain that was loose, I assume you didnt change it since the motor never came out of the car? or did it?
that was a source of a problem im my car but I had no failure of the oil pump but some how the chain got too loose and was slapping around making a small ticking noise!
did you ever sort out what was going on with the timing chain that was loose, I assume you didnt change it since the motor never came out of the car? or did it?
that was a source of a problem im my car but I had no failure of the oil pump but some how the chain got too loose and was slapping around making a small ticking noise!
Soroush,
The timing chain was slack since it's tensioners are hydraulic. When the oil pressure started to drop with the failed pulley, the chain started clattering. With the pulley fixed and full oil pressure, no noises.
The timing chain was slack since it's tensioners are hydraulic. When the oil pressure started to drop with the failed pulley, the chain started clattering. With the pulley fixed and full oil pressure, no noises.
BlackICE
GT Owner
Another FGT owner just discovered an impending oil pump pulley failure. The splines were partially gone and a lot of rusty powder debris was found inside the cover. He caught it just in time!
That makes 3 known failures.
I just checked my pulley and it appears fine; the pulley retaining nut torque (33 ft/lbs) was OK too.