Been reading this forum for months. You guys are really good. My 06 w/10000 miles seems to be hesitating when pulling my camper. Especially noticeable at 60-70 mph. Oil and fuel filters changed at 5000 and about to be changed again at 10000. Used Genos parts. No mods to the truck. I'm nervous about taking to the dealer, any ideas. By the way, I love the truck.

 

Any Codes?????? Fuel Pump may be going????????

 

No codes. I have had the Engine light come on a couple times but the truck seemed to run fine so I ignored it and it went out

 

My truck is doing the same thing.06 Mega cab.It has been doing it since 6000 miles.Mine does it so bad I can hear a drivetrain clunk when it happens.It happens almost everytime I pull the trailer but I can go for 2 or 3 days sometimes without incedent.Really hard to bring it to the dealer when you cant repeat the problem on command.My truck normally does it aound 60 to 70 mph also and the rpm dont change when it does it.I have thrown one code which was p0088.Please pm me if you figure out the problem.I will do the same.I wish it would just break so I could get it fixed.It is getting worse so maybe It will give soon.

 

Can anyone suggest were or what to look at?

 

Are you sure it was Code P0088? as I could not find this code on the list I have. I did find code P0188 that is for, Fuel Temperature Sensor B Circuit High Input.

 

yes,p0088 stands for fuel rail pressure too high.My truck is totally stock with no pressure boxes so I have no idea what could cause this.

 

Does it happen to be cold where you are ? I can't say that this is the problem but, I have an 07 that had the same problem. I do have some boxes but knew that's not where the problem was.

I assume since the temp stayed well below freezing but not below 0, I had some gelling. Using ULSD fuel can have that effect easier than the USD from what I've been told. I thought I used some Stanadyne as I usually do but must have forgot this time.

I spitted and puttered until I got back home. Poured in some Stanadyne went back out for a drive. It stall leaving my drive way but, after restarting it hasn't had a problem.

I had the same code 0088 and have assumed the gelling may have caused high fuel pressure somehow ( I could be wrong ). So, cold weather could have been the culprit?