Re: Engine problems - '99 9-3 - Saab NG900 & OG9-3 Bulletin Board - Saabnet.com
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Re: Engine problems - '99 9-3
Posted by Dean (more from Dean) on Thu, 3 Feb 2005 07:06:37
In Reply to: Engine problems - '99 9-3, Saab in Seattle, Wed, 2 Feb 2005 21:19:55
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Techron Concentrate.
Inspect VAC lines.
Could be a weak fuel pressure regulator, these often fail soon or right after the fuel filter is replaced.
Clean TB and see that ECU software is current.
What oil are you using? Could drain oil and fish in the pan with a wire looking for stuff that should not be there.
Suggest that the VC be pulled and head bolts re-torqued, and inspect for sludge and timing chain and spocket condition.
Noise at startup is consistant with low oil pressure and the effects of that on hydraulic lifters. Causes can include oil pickup screeen fouled with sludge or a sticking oil pressure relief valve (easily checked). Sludge is easily seen with VC off. Any oil in coolant or coolant in oil? Any loss of coolant? Think loose head bolts and head gasket.
Smell of fuel with a cold engine is normal.
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