I've been having problems with my truck hesitating after about 10 minutes. Felt like a fuel supply issue. After seeing my fuel heater actually smoking I pulled the relay and have not had any problems with hesitation, and actually it seems as though I have a bit more power. I've read a lot on several forums about symptoms similar to mine, but no one has mentioned the fuel heater circuit as a potential cause. I just wanted to let the forum know that I had this issue that seems to be cured by disabling the fuel heater. No idea why this would cause a hesitation problem, except if the fuel got so hot that the VP would shut down, but I've never seen codes to indicate this.
I've been having problems with my truck hesitating after about 10 minutes. Felt like a fuel supply issue. After seeing my fuel heater actually smoking I pulled the relay and have not had any problems with hesitation, and actually it seems as though I have a bit more power. I've read a lot on several forums about symptoms similar to mine, but no one has mentioned the fuel heater circuit as a potential cause. I just wanted to let the forum know that I had this issue that seems to be cured by disabling the fuel heater. No idea why this would cause a hesitation problem, except if the fuel got so hot that the VP would shut down, but I've never seen codes to indicate this.