Shudder in 4H
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12-26-2009, 05:27 PM
Join Date: Dec 2009
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Shudder in 4H
Since the temperatures are below 32F I've got some problems; the check engine light came on and I experience problems in 4H-mode.
when I want to drive from a full stop the truck is shuddering and you'll hear a loud bang. If you make a turn, you get the same. When the speed is above 10mph you've got no problems at all.
From what I've read it's the LS-differential. Is it just a change of fluid? If so, can I use this oil:
Link
It's a synthetic hypoid 75W140 oil with limited slip additives. It's hard to find some other oil here in Europe... I've found also some oil from Castrol, Castrol SAF-XJ SAE 75W-140 also with LS additives.
Or do I really need the Motorcraft oil with friction modifier?
when I want to drive from a full stop the truck is shuddering and you'll hear a loud bang. If you make a turn, you get the same. When the speed is above 10mph you've got no problems at all.
From what I've read it's the LS-differential. Is it just a change of fluid? If so, can I use this oil:
Link
It's a synthetic hypoid 75W140 oil with limited slip additives. It's hard to find some other oil here in Europe... I've found also some oil from Castrol, Castrol SAF-XJ SAE 75W-140 also with LS additives.
Or do I really need the Motorcraft oil with friction modifier?
Last edited by farris12; 12-26-2009 at 05:30 PM.
