Trans issues
Thread Starter
|
Posting Guru
Joined: Oct 2007
Posts: 1,130
Likes: 0
From: Bloomfield Hills, MI
Trans issues
3 speed trans, infos in sig
Was doing 2900 rpms on the freeway today (58mph or so) and all of a sudden 3rd gear sounded like it gave out and the truck shot into second. the engine redlined but i slowed down before any damage. I dont think the trans blew but am no expert on the trans. It wouldnt shift back into 3rd but was fine in 1st and second. Temp was just fine on engine and tranny. I just got the damn thing running too (new starter, alternator,voltage regulator, re wired, etc) Whats your thoughts? what would be the first place to look? Thanks - Joe
Was doing 2900 rpms on the freeway today (58mph or so) and all of a sudden 3rd gear sounded like it gave out and the truck shot into second. the engine redlined but i slowed down before any damage. I dont think the trans blew but am no expert on the trans. It wouldnt shift back into 3rd but was fine in 1st and second. Temp was just fine on engine and tranny. I just got the damn thing running too (new starter, alternator,voltage regulator, re wired, etc) Whats your thoughts? what would be the first place to look? Thanks - Joe
Thread Starter
|
Posting Guru
Joined: Oct 2007
Posts: 1,130
Likes: 0
From: Bloomfield Hills, MI
Its an x u-haul. I have already counted the bolts and confirmed a c6. some said its kinda rare to have a 90' with a c6 but u haul used it in trying to limit speed on these vehicles. Im thinking somethings wrong with vacuum? wheres the vacuum unit located? Is there any way to test for leaks? can i run smoke through the lines to try and pinpoint a leak? Which line would cause 3rd gear to just give out? Hmmm - thanks for the input so far. Ill try the 3rd gear manually tomorrow (this actually puts it in third? sorry stupid question! lol)
everything is working fine, tach,gauges, and it never had a problem.
everything is working fine, tach,gauges, and it never had a problem.
Thread Starter
|
Posting Guru
Joined: Oct 2007
Posts: 1,130
Likes: 0
From: Bloomfield Hills, MI
Fluid is great. nice and red.Doesnt look or smellburnt. miles in sig ... This just doesnt seem like a internal trans issue. Seems like it lost vacuum and slipped outta gear, the vacuum isnt there to throw it back into 3rd now. Maybe v pump lost some power and can only run 1,2 . Dont kno much about the vacuum system
Trending Topics
Post Fiend
Joined: Oct 2008
Posts: 8,513
Likes: 2
From: concord ca
what dose the the vacumm run off where is the pump located what dose it run off belt or is it intural
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Lead Driver
Joined: Nov 2003
Posts: 6,900
Likes: 3
From: Campbell River, B.C.
That would be the first thing I would check. Alternator and vacuum pump belts.
What are your power brakes doing? are they affected at all?
What are your power brakes doing? are they affected at all?