4.9 L oil leak, surge, PCV
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04-21-2004, 06:25 PM
Join Date: Apr 2004
Location: Alaska
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4.9 L oil leak, surge, PCV
Hi all,
I just bought a '90 F150 with the 6 cyl 4.9 L engine, 80K miles. It runs well, except for some hesitation and surging that seems to occur when the throttle is slightly opened, but not when I'm accelerating hard. I also noticed an oil leak on the driver's side towards the back of the engine. It seems to be leaking from the cylinder head gasket. I installed a new air cleaner, but no difference. I thought I'd change the PCV valve, but I can't find it! Do I have to remove the intake manifold? Where is it? Would this oil leak be a big job to fix? Any thoughts on what may be causing the surging?
I just bought a '90 F150 with the 6 cyl 4.9 L engine, 80K miles. It runs well, except for some hesitation and surging that seems to occur when the throttle is slightly opened, but not when I'm accelerating hard. I also noticed an oil leak on the driver's side towards the back of the engine. It seems to be leaking from the cylinder head gasket. I installed a new air cleaner, but no difference. I thought I'd change the PCV valve, but I can't find it! Do I have to remove the intake manifold? Where is it? Would this oil leak be a big job to fix? Any thoughts on what may be causing the surging?