Battery tray warping.

[Matahoe]

I purchased a new ACDelco battery tray hoping it would resolve a loose battery hold down issue.

As it turns out tightening the battery tray hold down bolt to the recommended torque results in warping the underlying nut weld.

This inevitably results in the battery becoming loose again in the tray.

Can anyone shine some light on this?

 

[afpj]

That's odd... On our 2002 Yukon, the battery tray is metal. I have never found a torque spec for the hold down but tighten it until the battery doesn't move but not so tight that it warps a battery. The only thing that warps with over-tightening is the battery itself. Do you have a plastic tray? Is your hold down plastic?

 

[swathdiver]

18 ft lbs for the retaining bolt. Tray bolts are 20 ft lbs.

 

[MrBalll]

Interesting. I don't even have a hold down. My battery just sits on the tray.

 

[Doubeleive]

Interesting. I don't even have a hold down. My battery just sits on the tray.

are you sure? it is small and triangular size and is mounted at the bottom back of the tray.

 

[Matahoe]

Interesting. I don't even have a hold down. My battery just sits on the tray.

100% sure you have a wedge shaped hold down with a bolt.

Earlier versions (such as with my 2003 GMC Sonoma) had a wedge shaped metal washer that kept the bolt from compressing the wedge plastic piece.

I bought one of them but it didn't help. I will take my battery tray out and show you all. My battery is held down to an extent but it still is loose and slides around.

 

[MrBalll]

I may not be sure what everyone is talking about, but if I did have a hold down the PO took it out. All I have now is the tray the battery sits on and the batteries own weight holds it there.

 

[Matahoe]

Well that's not good. Besides the safety factor here....the battery hold down is also there so it doesn't move around unnecessarily. Unless you have a gel cell or AGM...battery life can be negatively affected with too much vibration.

 

[915_Tahoe]

HERE IS THE DIAGRAM OF TH BATTERY MOUNTING, HOPE IT HELPS.
THIS IS FOR 99-06

 

[MrBalll]

Oh yeah. I definitely don't have #4.