Diagnose this problem...
Thread Starter
Race Director
Joined: Jan 2002
Posts: 14,168
Likes: 269
From: Shitcago IL
St. Jude Donor '04-'05-'06-'07-'08
Diagnose this problem...
My car has been running real rough lately. Here are the symptoms:
OK. I replaced both sensors (pre-cat) and no dice. Checked the individual header temps and the ones on the right bank average from 180-210F, the ones on the left bank are averaging from 280-320F.
What could be the problem???
Thanks.
- Check Engine Light On. (Oxygen sensor. Right bank. Pre-cat.)
- Rough Idle. Sometimes sticks at 2000rpm, sometimes idles under 500rpm.
- Very bad gas mileage. 8 MPG.
- At some points the exhaust sounds very weird and sounds like a gurgle, and when I press the accelerator, it feels like the car has no power, and then it just "grabs" the power and the revs jump, and the wheels spin.
- Unburned gasoline can be smelled in the cabin at times, like the car is runing way rich.
OK. I replaced both sensors (pre-cat) and no dice. Checked the individual header temps and the ones on the right bank average from 180-210F, the ones on the left bank are averaging from 280-320F.
What could be the problem???
Thanks.
Tech Contributor
Joined: Dec 2006
Posts: 10,962
Likes: 29
From: Van Buren Arkansas
Wounded Warrior Escort '11
Start by pulling all of the codes and posting them. Have you checked for any vacuum leaks? PCV Valve connection tube (didn't look at the year of your car yet). Do a compression test just to be sure. Ground wires on the back of the driver's side head. Have you pulled and checked the spark plugs themselves lately?
