I am such a douchbag.......

[jgt58]

Well I was working on my car today changing the TPS because it was suspect because the engine wasnt idling at a constant RPM. Well changed it , nothing. Its like the car had no power. Well after 3 hrs of inspection , when I changed my PCV valve , I forgot to hook up the vaccum hose to it coming from the crankcase, causing a biggg vaccum leak. problem solved!!!!! She runs like a champ!!!

 

[white1989]

Yep vacuum leaks are the biggest contributor to running problems.

I had the same issue. Car was stumbling only when hot. Cold it was good. Found the PCV valve tube from the crankcase was old and missing a clamp to hold the valve in place, so when it got hot, the tube loosened and it would be leaking past the valve. Replaced the valve, and used a band clamp to hold it into place. All good now..

 

[jgt58]

did you get any better gas mileage?

 

[white1989]

No, I had to install a new 02 sensor to get that issue sorted out...