02 suburban loses power and throttle response when up to temp
#1
02 suburban loses power and throttle response when up to temp
If anybody could help me with this I would greatly greatly appreciate this. I've got a 2002 Chevrolet Suburban lt with flex fuel system. I just recently moved from Alabama to Arizona about 400 miles away from Arizona the truck started spitting and sputtering and losing throttle response like it wasn't getting fuel. I can shut the truck off, restart it and immediately works perfectly fine. I have pulled engine codes and it gave me a code for the flex fuel sensor and the evap purge solenoid. I have replaced both and the truck still does the same thing it seems to be getting worse. I currently have an H pipe set up exhaust no catalytic converters and Flowmaster muffler so I know it's not back pressure coming from the exhaust. No sensor is showing to be faulty. At first start up the truck runs perfectly fine anywhere between 30 minutes to 2 hours it just depends on how it feels lll. after that it will start spitting sputtering backfiring until I pull over and shut it off. Upon starting it back it's perfectly fine. Also the fuel pump relay gets really hot I have replaced it multiple times as soon as I replace it is perfectly fine I'm really hoping this is not a fuel pump issue but I'm sure someone out there has had this issue before and I'm just looking for advice any help would be greatly appreciated thank you very much.
#3
Codes were I believe p0402: flex fuel sensor. And po174: evap purge solenoid. Both replaced and no cel's currently. Planning on that tomorrow was just hoping someone ha ran into this before. I'm on week 3 and $850 into it and getting frustrated lol