I have a weird one. Helping my buddy fix his truck that he said would cut out and have no power and sometime die on him. When I got ahold of it it had a ton of codes on it but the 3 concerning ones were the MAF, IAT sensors and a low fuel pressure code.
I bought the IAT and MAF sensors today and installed them (found bad connection at the harness of the IAT but replaced the sensors anyways).Cleared the codes and fired the truck up and great news, no CEL.
took the truck for a spin and everything was running great, surface streets, highway, WIde open throttle etc. then after 45 mins while at a stop light the idle started to surge, truck acted as if it was starving for fuel and just died.
it started it up reluctantly and I limped it into a parking lot sputtering and bogging down like it wasn’t getting fuel. Checked the codes and I got a P0193 high fuel pressure alarm. From there I figured I could limp it home, but no luck, it kept dying even cruising at 30mph it would sputter and just die and coast until I could get pulled over. Sometimes it would start right up then die when I tried to go, sometimes would start and die instantly, every time registering (2) P0193 codes. Sometimes it wouldn’t stay running until I let it sit for 20 mins.
I left it in a parking lot and went back 5 hours later and drove it home and it ran great, no codes, gobs of power etc. after talking to my friend he says it always seems to happen after 30-45 mins of driving and once it cools down you are good to go for another 30-45 mins.
after doing some research on these forums I’m thinking it’s the fuel regulator (big job) but I can’t wrap my head around why it’s only after 30-45 minutes and is literally instantly undriveable with no warning. Seems like majority of the regulator issues are on cold starts with most people. Help me figure this thing out!
I bought the IAT and MAF sensors today and installed them (found bad connection at the harness of the IAT but replaced the sensors anyways).Cleared the codes and fired the truck up and great news, no CEL.
took the truck for a spin and everything was running great, surface streets, highway, WIde open throttle etc. then after 45 mins while at a stop light the idle started to surge, truck acted as if it was starving for fuel and just died.
it started it up reluctantly and I limped it into a parking lot sputtering and bogging down like it wasn’t getting fuel. Checked the codes and I got a P0193 high fuel pressure alarm. From there I figured I could limp it home, but no luck, it kept dying even cruising at 30mph it would sputter and just die and coast until I could get pulled over. Sometimes it would start right up then die when I tried to go, sometimes would start and die instantly, every time registering (2) P0193 codes. Sometimes it wouldn’t stay running until I let it sit for 20 mins.
I left it in a parking lot and went back 5 hours later and drove it home and it ran great, no codes, gobs of power etc. after talking to my friend he says it always seems to happen after 30-45 mins of driving and once it cools down you are good to go for another 30-45 mins.
after doing some research on these forums I’m thinking it’s the fuel regulator (big job) but I can’t wrap my head around why it’s only after 30-45 minutes and is literally instantly undriveable with no warning. Seems like majority of the regulator issues are on cold starts with most people. Help me figure this thing out!
