Question about 1999 GMC Sonoma
My 1999 gmc sonoma is leaking oil bad. i can see the leak but dont know what the part is. it is just to the left of the oil filter and it looks like a motor mount bolt busted and broke something off. I need to know what the part is that broke off. there is a "hole" where the oil is leaking from, but i dont know what was there. Please help
If it is on the back of the motor then it will be the oil pressure sending unit
Posted on Feb 13, 2009
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Posted on Jan 02, 2017
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Remove the plastic cover (#19), hold a rag over the valve, and push in the stem to relieve the fuel system pressure. Since you are leaking, there may not be any pressure.
Remove and discard the fuel fitting clip.
Disconnect the fuel inlet and return tube and fitting assembly. Discard the old O-rings.
Position new O-ring seals (lightly coated with clean engine oil), then connect the fuel inlet and return tube and fitting assembly.
Install a new fuel fitting clip.
Pressurize the fuel system by cycling the ignition switch ON for 2 seconds, then OFF for 10 seconds and repeating, as necessary. Once the fuel system is pressurized, check for leaks.
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