6.4L Power Stroke Engine and DrivetrainDiscussion of the 6.4L Power Stroke diesel engine and drivetrain in the 2008 Super-Duty trucks. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 6.4L Power Stroke engine.
Anyone else experiencing a bad clunking/popping noise with their automatic transmission when moving the gearshift lever from drive or reverse into park. My dealer only sells trucks and they diagnosed the noise as a popping noise and is characteristic of "driveline windup" being relieved. The tech consulted with the hotline and they said they have no reports of this concern and it is probably normal. Tech stated he did try other trucks and they did the same thing. If I move the gearshift lever really slow the noise is not there.
I know these trucks have a lot of torque and put a lot of strain on the driveline when stopped but this noise is really loud and is very annoying. Sounds and feels like the transmission is going to fall out. My truck is also 2wd.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Flamingstar</div><div class="ubbcode-body"> a popping noise and is characteristic of "driveline windup" being relieved. </div></div>
I would guess they have no reports of it because other trucks don't do it. My transmission goes into gear quietly. There is definately nothing I would describe as a clunk or popping sound. If I were you, I would take my truck somewhere else. Good luck.
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2008 F350 PSD, KR, CC, LB, SRW, 3.73, Job 2, Dark Copper/Pueblo Gold, Backup camera, Integrated brake controller, Color matched Scorpion Bedliner, Edge Juice w/Attitude
2004 American Hauler 38' Enclosed Gooseneck trailer
1931 Model A Ford Tudor Sedan
1931 Model A Ford Victoria
1931 Model A Ford Coupe
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Y2K excursion XLT 2wd, ordered july '99, built august '99, delivered september 9 '99, 4R100 fried & replaced at 900 miles still running like a champ
Yes mine does teh same thing it now has 6100mi. on it and no prolbems it has been there from about teh start and have not woried about it ona side note my nabor has one to it is afew months newer then mine and does the same thing my truck was bought in April.
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08 250FX4 SB CC
6.4 silver
job 1
picked up 4-1
I’ve noticed this but I think it only happens when I park on a slight incline. I believe it's just the parking pin engaging in the transmission. If pin and transmission aren’t completely lined up it will make a popping sound when it pops into place and the sound echoes down the driveshaft. I could be wrong but it makes sense to me and so far it hasn’t hurt anything that I know of.
__________________ '08 F-350 Lariat 6.4L Auto, Crew Cab, DRW, long bed, 4x2 and 4.10 gears.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Gerry40</div><div class="ubbcode-body">If pin and transmission aren’t completely lined up it will make a popping sound when it pops into place and the sound echoes down the driveshaft.</div></div>
I think you're right!
To prove it, when you park on an incline, when you're parking put the trans in neutral, set the parking brake, release the service brake, and then put it in park. When you are leaving, do the same procedure in reverse.
__________________ Mark
Former Automatic Transmission Engineer 1988-2007
I park on inclines alot, and if you slowly release the brake pedal after you put it in park, it will allow the parking pawl to slide in slowly, which makes that noise almost unnoticeable.
On a side note, my Grandpa complains of a similar noise with his '08, only in his driveway, which has an incline where he parks.....
Dave
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Smokyred- RED 11/97 F250HD XLT SCLB Auto 4.10LS 4x4 OFFROAD Powered By 2L Motorsports and SWAMPS.
Mods: AM Ultra-Lites, DiPricol HPOP gauge,TS/2L Moto Chip, 4" Straight-Piped, Poor boy's intake, Swamps II's, BTS, 285 BFG A/T's on factory Alcoas. Lots more to install, see below!
On the bench: AirFlo S400, Swamps 275's, Studs Rods and Springs for the top end, and some other stuff.
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