I have a 5-spd manual in a 4.6L and I noticed that whenever I shift from 3->4, I hear a wonderful grinding noise. It's the same noise you hear when you're just learning to drive a manual and grind your tranny. I've noticed that it happens after 2500 predominatnly. If I shift from 3rd and wait for a second or more in neutral, then move to 4th, the noise does not occur.

To cut a long story short, I spoke to a tech at the dealership and he suggested that a synchronizer could be going bad, or is bad. My question is, should I ask for a new transmission or is this something that can be replace relatively easily. The truck has 23K miles on it and is 6 months, 1 day old

Thanks for any info!!

Regards,
Alvin


2000 Black F150 XLT Sport
4.6L 5-speed
Class 3 Towing
Rhino Bedliner

 

I too had a grinding in my tranny. I think it's just one of the tranny's idiosyncrocies. Anyway, I switched to Mobil1 synthetic ATF. Grinding gone! Regards, m.a.t.

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1999 XLT SC, bright red, 4.2l, 5 speed, MAAP stainless nerfs, Prime Designs bug deflector, Astro Euro-Lid II, Mobil 1 Synthetic Oil and Transmission Fluid.

 

So maybe the problem is just that I need to flush the transmission fluid and refill it? I guess I need to go back a few posts and see what else needs to be done.

In any case, I drove past the dealership on my way home and I spoke with them. They'll still look at it on Monday so I'll wait a bit and see what happens.

Thanks for your response! The info is much appreciated.

Regards,
Alvin

 

alvinsb,

Have your Dealer fix the tranny. Mine was grinding and it was replaced.

Regards

Jean Marc Chartier

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00 F-150 XLT SC Flairside 4x4 4.6 w/5spd 3.55LSD
Warn XD9000i, skid plates, Draw tite class III,
Rancho RSX Reflex shocks,
Borla Cat Back, Headman Headers,
Modified Air Cleaner Outlet Tube
and air box, Shortened MAF sensor tower,
K&N air filter,
Superchips

 

I spoke with the service manager today. Apparently he's heard of this before and has repaired another 2000 F-150 with the same problem. He's ordering new gears for the tranny. Hopefully I'll get my truck back before this weekend. I'll let you guys know how things turn out. In the mean time I'll be putting around in a Chevy Metro (I'm 6'3"). I really miss my truck. . .

 

I got my truck back on Friday. The tech replaced the syncro on 3rd and 4th gear, and 4th gear as well (even though there was no apparent damage to it). But it works well. 3rd's a little stiff, but it probably just needs to be broken in. My only question now is, can anyone tell me if and how to bleed the clutch? Thanks!

-Alvin

 

Have 99 F-150 that ground 1 ->2. Ford Dealer diagnosed as a blocker not functioning. Pulled tranny to repair. Had factory tag "do not open, quality control unit" Ford replaced with new tranny. At ~1000 miles this second new tranny will grind when 1->2 or 3->4 shift under high load or RPM. I believe this is a design problem with the tranny. Would like to collect metrics from others and figure out who we talk with. Once is irritating, twice is a significant problem.
coachrg@frii.com

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Rob

 

Mine grinds from 1st to 2nd only if I am really getting on it (above 2500 rpm).Probably will add it to my have the dealer check list.

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2000 f150 4x4 sport,black, 3.55 5spd ,4.2 liters of fury ------mods----pioneer cd,alpine sub,cadence ultradrive amps,alpine mids&tweets,Delta tool box,class III reciever hitch,herculiner bed liner,taz floor mats,profile bug guard,custom painted tail light covers,headlight covers,cranked torsion bars,pirelli scorpion at(265/75 16), modified air box(crash1 style),JET air filter


www.lightningcrashz@hotmail.com