I’ve been having some trouble with my 2000 Outback wagon. It starts, but seems to be really struggling at low RPMs. When it’s idling, the whole car shakes pretty bad and the check engine light comes on. Sometimes it shakes so violently that it stalls out.
I brought it to my mechanic during the winter. He thought I might have moisture in the tank and suggested putting some isopropyl alcohol in the tank. I couldn’t find the really pure stuff at the drugstore, so I sprung for a few bottles of HEET. That seemed to work, but only for about five or ten minutes each time.
Mechanic thinks I might have even more water in the tank and suggested I keep pouring the alcohol in there. I’m skeptical. Is there anything else it might be or that I could try?
You didn’t mention what codes came up when your mechanic scanned the vehicle’s OBD system.
If he failed to check the stored trouble codes and merely told you to keep dumping alcohol into the tank, then he is absolutely not a competent mechanic.
Also–how many miles are on the odometer?
Have the spark plugs ever been changed?
Car’s in the shop right now, otherwise I’d run out and check the odometer. I think it’s around 160,000?
Not sure about the spark plugs. I’m no expert under the hood, but I’m not afraid to get my hands dirty. Is changing the spark plugs relatively straightforward on this car?
And the “mechanic’s” suggested fix was to just keep dumping alcohol in the tank?
+1
Since a misfire can result in VERY expensive damage to the catalytic converter and the engine, it is important for the OP to get this resolved now, by somebody who is competent.
While I think, given the circumstances, that the dealer may be your best alternative here…bear in mind that the dealer is typically more interested in selling you a new car than fixing your 20 year old one with problems. So take whatever they tell you with a bit of salt.