So I changed the Lower Intake Manifold gasket
(and the front head gasket, the thermostat and the temp gauge sensor) a few months back and now my 2001 Alero has some frustrating problems. To wit:
1. It's throwing a P0135 code. I replaced the oxygen sensor but the code remains even after driving 100 miles. I can't get the car inspected because the Service Engine Soon light is on.
2. The cooling system is giving me trouble
. The temperature goes up past the halfway point, especially after turning the car off and then starting it soon after. I bled the system and that does seem to have made a significant difference but the temperature is still creeping upwards, although not so high as before. The thing is that I do not observe the fans coming on at all. When exactly are they supposed to come on? Can anyone recommend a good video on bleeding the system? I ran the car with the radiator cap off. I opened the bleeder while squeezing the radiator hose. Perhaps I'm doing it wrong?
3. I'm wondering if the culprit might have something to do with a small gas leak I've noticed coming from the fuel rail. When I was changing the gaskets, I saw that the washer that fits inside one of the fuel rails was broken. Being pressed for time and not wanting to purchase a stupid washer from Auto Zone for $25 that they didn't even have in stock, I replaced it with a washer that_looked_like it was the same size. Now, I see (and smell) that there is a leak there. Could that be causing the problem with the oxygen sensor and (perhaps more improbably) the temperature?