HKusp
Well-Known Member
- Joined
- Jul 22, 2021
- Threads
- 37
- Messages
- 2,227
- Reaction score
- 2,875
- Location
- Hampton, Md.
- First Name
- Jason
- Vehicle(s)
- 2018 Mustang GT
- Thread starter
- #31
I have some pretty good news to report today. After having the car sit for the last 7 months, last Friday I trailered it to a local shop that has some pretty good detectives working there and had them try and figure out what was wrong and it seems they have solved the dilemma. To summarize what was going on as described to me by their shop foreman who admittedly is an LS guy but is very on the ball-
He initially got the car running and let it warm up for a while, then drained the oil and looked at it and was concerned so he texted me and asked if the car was on 93 or E85. I said 93, and asked why. He then sent me a video of the oil but on my phone I wasn't sure what I was looking at and asked him if there was glitter in the oil. He said no, but it looks like a caramel latte from Dunkin Donuts. At first I was concerned because the oil and filter had about 40 miles on it, but Phil reminded me that we had put Ceratec in it and I mentioned that to the mechanic and he said "Ah, that explains THAT"
He then mentioned that the car would initially fire up and run smooth for a short time, but would then get to where it was running rough as described above in post 25. They hooked it up to their Snap-on scanner and found that once the car settled down and was trying to idle the PCM was commanding negative 4 degrees on each of the cams, but the passenger side exhaust cam was going negative 35 degrees and the car was obviously running very poorly.
He pulled the cam cover and yanked out the brand new solenoid and bench tested it with a power probe. It would actuate/activate with 12volts. He and another worker there kept fooling with it and all of a sudden a glob of something he described as blackish gray with the consistency of assembly lube flopped out of it on the bench and then when they put power to it, it clicked and actually started working. So he called Ford and bout a new one. He re-installed it and got the car mostly buttoned up to where it would run and it sounded right and acted right. He took it for a little test ride and said it seemed much better to him. The cams are doing as commanded and the car is idling with cylinder head temp around 203 degrees, normal oil pressure, etc. For the purpose of testing, he put Motorcraft 5W30 synthetic blend in the car right now and if all goes well, we'll be putting 5w-50 back in.
So I went down to the shop and we threw a dealer tag on the car so I could road test it. It fired up and sounded good. I took it out onto I95 and and the beltway and ran it up a little bit again, probably never taking it above 5500-6000rpm. I was watching and listening for anything out of the ordinary and all was well for the most part. It was relatively warm, 85 degrees, and the bottom of the air box wasn't installed and neither was the plastic belly pan on the bottom of the car.
I was running around in a gear lower than I would normally in most situations sometimes to, so 3rd gear when I normally would be in 4th or 5th, depending, just to stress it a little and listen to it rev a bit. I saw cylinder head temps rise into the low 220's after a few hard pulls but it would go down when I was driving more normally and got down to 210-215 pretty quickly. I don't think it is having any issues and I also don't have the PP1/2 bigger radiator on my car, which I am probably going to do, plus as soon as I get it back and we can verify it's ready I am going to switch it back to 5w-50 and start working on getting it tuned to run on ethanol which runs so much cooler anyway, it should be a totally moot point.
Keep your fingers crossed for me, as hopefully, I'll have the car back by next weekend and we can go from there. Yay!!
He initially got the car running and let it warm up for a while, then drained the oil and looked at it and was concerned so he texted me and asked if the car was on 93 or E85. I said 93, and asked why. He then sent me a video of the oil but on my phone I wasn't sure what I was looking at and asked him if there was glitter in the oil. He said no, but it looks like a caramel latte from Dunkin Donuts. At first I was concerned because the oil and filter had about 40 miles on it, but Phil reminded me that we had put Ceratec in it and I mentioned that to the mechanic and he said "Ah, that explains THAT"
He then mentioned that the car would initially fire up and run smooth for a short time, but would then get to where it was running rough as described above in post 25. They hooked it up to their Snap-on scanner and found that once the car settled down and was trying to idle the PCM was commanding negative 4 degrees on each of the cams, but the passenger side exhaust cam was going negative 35 degrees and the car was obviously running very poorly.
He pulled the cam cover and yanked out the brand new solenoid and bench tested it with a power probe. It would actuate/activate with 12volts. He and another worker there kept fooling with it and all of a sudden a glob of something he described as blackish gray with the consistency of assembly lube flopped out of it on the bench and then when they put power to it, it clicked and actually started working. So he called Ford and bout a new one. He re-installed it and got the car mostly buttoned up to where it would run and it sounded right and acted right. He took it for a little test ride and said it seemed much better to him. The cams are doing as commanded and the car is idling with cylinder head temp around 203 degrees, normal oil pressure, etc. For the purpose of testing, he put Motorcraft 5W30 synthetic blend in the car right now and if all goes well, we'll be putting 5w-50 back in.
So I went down to the shop and we threw a dealer tag on the car so I could road test it. It fired up and sounded good. I took it out onto I95 and and the beltway and ran it up a little bit again, probably never taking it above 5500-6000rpm. I was watching and listening for anything out of the ordinary and all was well for the most part. It was relatively warm, 85 degrees, and the bottom of the air box wasn't installed and neither was the plastic belly pan on the bottom of the car.
I was running around in a gear lower than I would normally in most situations sometimes to, so 3rd gear when I normally would be in 4th or 5th, depending, just to stress it a little and listen to it rev a bit. I saw cylinder head temps rise into the low 220's after a few hard pulls but it would go down when I was driving more normally and got down to 210-215 pretty quickly. I don't think it is having any issues and I also don't have the PP1/2 bigger radiator on my car, which I am probably going to do, plus as soon as I get it back and we can verify it's ready I am going to switch it back to 5w-50 and start working on getting it tuned to run on ethanol which runs so much cooler anyway, it should be a totally moot point.
Keep your fingers crossed for me, as hopefully, I'll have the car back by next weekend and we can go from there. Yay!!
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