hagglerock

I have a 99 Grand Prix GT 3800 with 145k miles on it. It has recently develope a small oil leak from what appears to be the front end of the engine. After inspection I found that the front u-shaped engine mount was full of oil. I suspect that the oil seal for the crankshaft in the engine front cover has failed. Is this common? Also it appears that I can access this through the wheel well on the passanger side. It seems that this should not be to difficult to replace, but any advice up front would be greatly appreciated.

Thanks

BNaylor

It happens but not really that common. Best to remove the crank pulley and harmonic balancer like doing a crank position sensor job and do a closer inspection just to be sure. The seal on the timing chain cover actually contacts the harmonic balancer. See pic below.

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'08 Pontiac Grand Prix GXP (Dark Slate Metallic) - LS4 5.3L V8
'08 Pontiac Grand Prix GXP (Liquid Silver Metallic) - LS4 5.3L V8
'02 Oldsmobile Alero GL2 - LA1 3400 V6
'99 Buick Regal LS - L36 Series II 3800 V6
'03 Honda CR250R MX - 2 Stroke 250cc
'97 Pontiac Grand Prix GTP - L67 Series II 3800 V6 Supercharged
Timeslip 08/12/06

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