There was a recall for the 94-97 850's for gas tank leakage, just in case you don't find the cause right away. You can call your local Volvo dealer and give them your car's VIN number and they can look in the computer and see if your's has been inspected or replaced. If they find leakage and it's tank related they'll replace the tank free. But then again you may find it's just a hose or loose clamp and be able to fix it yourself.





-Mike
'95 850T

Sorry about the last "no post".

I was having gas leak every time I filled the tank. Paid someone to drop the tank and replace the vent hose which had broken all the way through.

steve.

I had the same problem this week after filling up. After pulling both insp plates, I let it sit overnight with a full tank outside of course. The next day the bung for the fuel pump was covered with gas. I dried it up and discovered the epoxy sealant Volvo used around the fuel pump wires had deteriorated and allowed expanding gas to leak up the once sealed wire leads. I cleaned the pit surrounding the wires with acetone on a q-tip and used JB Weld to fill it back in flush with the top. I had to siphon off a gallon or so beforehand so the tank isn't topped off now. I'll find out for sure next time I fill it up.
JR

if you think its coming from the top of the tank then drop the back seats and look under the plastic panel and unbolt the access panels to the pump and sending unit and peek inside.

You might find that the quick connect cables are loose or there is a split in it.

You might also want to inspect the part where the filler tube connects to the tank itself. It might be leaking from the top part of the connection. This can also be done without having to remove the tank.

If you have to .. then unbolting the tank isnt difficult.. its held by 3 bolts and two straps.



--
93 850GLT 430,000km * 94 850 300,000km * 86 240GL 360,000km

if you think its coming from the top of the tank then drop the back seats and look under the plastic panel and unbolt the access panels to the pump and sending unit and peek inside.

You might find that the quick connect cables are loose or there is a split in it.

Unbolting the tank isnt difficult.. its held by 3 bolts and two straps.

--
93 850GLT 430,000km * 94 850 300,000km * 86 240GL 360,000km

if you think its coming from the top of the tank then drop the back seats and look under the plastic panel and unbolt the access panels to the pump and sending unit and peek inside.

You might find that the quick connect cables are loose or there is a split in it.

Unbolting the tank isnt difficult.. its held by 3 bolts and two straps.

--
93 850GLT 430,000km * 94 850 300,000km * 86 240GL 360,000km

Before you drop the tank, just remove the carpet in the trunk and take off the inspection plates. This will let you look for leaks at the sender and fuel pump with a lot less labor. And you won't have to wait for the weekend.

Klaus
--
1975 164 w/174,800mi (Sold) 1995 850T w/91,000mi, 1998 V70R w/129,000mi