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Could it be the Fuel Pump?
It could be the anti-drain back valve (check valve) is stuck or it could be the Walbro fuel pump which is known to be good up to the 80,000 to 120,000 mile range. The banging on the tank trick working usually means fuel pump.
The typical symptom of a fuel pump check valve failure is extended
cranking time during startup. What generally occurs here is that the
check valve in the fuel line sticks open causing lack of fuel pressure.
This usually occurs after the car has been sitting for a while or
overnight. The fuel pressure leaks down causing the fuel pump to have
to work very hard to push the fuel from the tank to the fuel rail.
The symptom is similar to vapor lock but not quite. The solution to this is to replace
the fuel pump check valve which can be difficult in itself. Be very
cautious when attempting this repair because of the dealing with the
fuel system and this always presents a potential FIRE HAZARD!!!!!!!
NOTE: When doing this job, be
careful. If you break the link with no check valve in the fitting you
will have to replace the entire fuel line because Saab does not offer
the fitting by itself. Being a "Bull in a china shop" would not be a
good idea here. If you break the valve you can replace the valve by
itself only if you purchase the complete line and remove the valve from
the new line and install it in the old line. They valves become brittle
over time and can easily break when removing the fuel pump.
Fuel pump failures often cause the engine to buck when going up hills
or just quit completely. You can test the fuel pressure using a fuel
pressure gauge. The pressure should about 40 PSI (approximately). The
location of the pump depends on which car you have. On the later model 900, 93, 95, and 97X the fuel pump is
located in the fuel tank and the tank must be removed to replace it.
10/19/2020 11:26:37 PM •
2002 Saab 9-5
on Oct 19, 2020
My 02 Aero's heated seat
i would think the switch has failed if the seat gets hot in the off position.
Either disconnect switch or fit a new switch or take fuse out.
Have a 2002 saab 9-5
First use Tech2 for DTC.
Blahblah speach like "got a code in the 1100's" is useless ;)
For me it sounds like a crankshaft sensor, but I may be wrong.. Need more info to help you.
Dirty air filter symptoms
Take it out and look at it - still white, OK.
Dark and encrusted with dirt, leaves, pollen, etc - replace.
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