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, Sun, 18 Nov 2012 06:34:53
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Rob - - Fuel filter on these cars, coffee-can size, sits crosswise, held by a strap to the body, up ahead of fuel tank behind rear axle at passenger side.
I had a rusty '89 that had your symptoms and it was a rust hole through the metal of the filter can.
They're not fun to do or even to examine, but I'd say jack rear of car up some and slide under to have a look at least.
Other possibilities are leaks in the fuel lines to canister or from canister to front, but not likely unless someone already messed up these lines by kinking them while manhandling a fuel filter replacement. Or it could be coming down from above gas tank say at pump connections, but I don't think you'd be seeing a spray down below if that were it, more like dripping off the bottom of the tank.
They're not much fun to do because of the dirt and location, and because gasoline will drip on you from three places - - the full old filter, and from the lines leading to the tank and off to the front of the car, once the bolts are disconnected.
They are nylon fuel lines, too easy to kink, held to the filter with banjo connectors and hollow bolts, sealed at both sides of each banjo with rubber-lined bonded sealing washers.
You can do it yourself, holding the filter from turning by locking a large vise grips onto the hex shaped ends of the filter, and using either a box end wrench or a socket and breaker bar on the bolt for the banjo fitting. Pros typically use an air wrench, pops the bolt free without much need to hold the filter and no strain on the fuel lines. YOU need to make sure to not twist or put pressure on the lines when you're breaking the bolts free, or when retightening.
I would leave the filter strapped to the body till bolts cracked loose if it were me. Getting a bit into the torx screw that holds that strap is not easy if it's rusty. Might want to break that loose first of all but leave strap attached if you can get at banjo bolts that way, then remove strap and filter.
It will start leaking gas the instant the first bolt is cracked free, and keep leaking gas the entire time, including once the gas-filled filter is removed, though at a lesser clip. Have a flat pan and maybe most of it will drip there, and put down newspapers or cardboard ahead of time to soak up the rest. Don't smoke.
I got away with reusing the sealing washers. They aren't cheap and are I think only available from Saab dealerships, site sponsors online, or maybe at a local Saab indy. Don't lose them when you're working.
Lots of people would leave this job to a garage.
posted by 71.173.66...
, Sun, 18 Nov 2012 06:34:53
, Sun, 18 Nov 2012 19:11:13, Sun, 18 Nov 2012 08:56:35
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