Speedometer jumping please help!
Thread Starter
|
New User
Joined: Aug 2015
Posts: 3
Likes: 0
Speedometer jumping please help!
I have a 95 f150 4.9 with a 5spd manual transmission with a 4 inch lift kit, the issue I have is my speedometer keeps jumping, now I have had the transmission replaced and the shop checked for issues there or with my rear end (vss sensor)
nothing, another shop replaced the spider gears in the rear end as well as the whole cluster in the dash, the speedometer worked however only when I was going over 50 mph so I replaced the actual speedometer in the cluster, this time everything work perfectly I had cruise control back and everything was fine for two days, earlier today I was headed to work and the speedometer started jumping all over the place no idea what happened please help!
nothing, another shop replaced the spider gears in the rear end as well as the whole cluster in the dash, the speedometer worked however only when I was going over 50 mph so I replaced the actual speedometer in the cluster, this time everything work perfectly I had cruise control back and everything was fine for two days, earlier today I was headed to work and the speedometer started jumping all over the place no idea what happened please help!
Posting Guru
Joined: Sep 2008
Posts: 2,379
Likes: 2
the speedo gets its signal from the VSS. Don't use a poor quality VSS, you will be bit.
Aside from that, the speedo itself is a PSOM (programmable speed odometer module) and is a computer in itself. I have had the components on the board become de-soldered before and needed repair.
Aside from that, the speedo itself is a PSOM (programmable speed odometer module) and is a computer in itself. I have had the components on the board become de-soldered before and needed repair.
Fleet Owner
Joined: Jul 2006
Posts: 20,322
Likes: 789
From: Mi'kma'ki
Thread Starter
|
New User
Joined: Aug 2015
Posts: 3
Likes: 0
Thank you everyone ended up unplugging my abs connection behind the glovebox after more research and I'll be damned the jumping stopped
Thread
Thread Starter
Forum
Replies
Last Post
ScorpionKing
1987 - 1996 F150 & Larger F-Series Trucks
54
Jan 12, 2021 11:37 PM
thordehr
1999 - 2003 7.3L Power Stroke Diesel
19
Nov 22, 2010 11:09 PM
