Stumble/Miss/Hesitation

[LongIslandSCREW]

Thanks 88 and thanks Bill - I appreciate it! I cant go back to stock HA HA HA HA HA !!!

Bill, I am home most of the time - work out of my house. If you have seen this issue enough and would like (and its possible) I could always hook my laptop up to the programmer and take a drive while you watch and try to diagnose. I have a verizon wireless card in my laptop so mobile isnt an issue.

Rarely do i opt to drive slow so its an issue but its really not. Problem is where I live - there is always traffic!!!!

[tohi2care]

I have been experiencing the shuddering aswell. It feels like the truck is misfiring and if I turn the engine off and restart it the problem goes away. I'm going to plug my gryphon into pegasus tonight since it's been awhile and see if there are any updates.

[88Racing]

Originally Posted by tohi2care

I have been experiencing the shuddering aswell. It feels like the truck is misfiring and if I turn the engine off and restart it the problem goes away. I'm going to plug my gryphon into pegasus tonight since it's been awhile and see if there are any updates.

Please be more specific.
Are you using canned or custom tunes?

[BigSur]

I feel sorry for anyone who has paid such good money for a faulty product, and then there is no support behind it. You would think that if there is too much workload going on, new hires would be brought in to close this gap.

Normally, I would keep my mouth shut on this type of isse b/c I haven't experienced any problems myself.....until now.

Yesterday, I pulled up to a stoplight and all of a sudden it felt like my truck was sputtering...almost like it was not getting enough fuel or something. I started to drive it and it continued for a mile or 2...then stopped on its own. It felt VERY unhealthy for the truck. The issue did not repeat itself throughout the rest of the day. I haven't driven it yet today.

My plan is to see if it starts to become a recurring issue. If so, I may make an attempt to get it fixed but I might just set it back on my tow tune and let it be.

I'm not being bitter at all here...I'm speaking as a guy who sells services to the federal government where customer service is EVERYTHING. Without it, our business cannot sustain or grow. I truly hope PHP can get over their "busy" issues and close this gap for those of us that are having problems b/c word of mouth goes a long way.

[tohi2care]

It seems you have the same issue I do aswell.

[BigSur]

Originally Posted by tohi2care

It seems you have the same issue I do aswell.

I figured as much. Luckily, it hasn't happened again. Might have been an anomaly. We'll see what happens. Have you tried calling PHP? I've called and have gotten through to Cody before on multiple occasions. If I were you, I would call, call, call, and call again...if you can't get through, call again...and again. You'll get ahold of them sooner or later and I'm sure they'll help you out. I'll follow up if I keep having the same issue.

[BigSur]

Originally Posted by tohi2care

It seems you have the same issue I do aswell.

Tohi2care, I gotta ask.....has your issue been resolved? OR are you just "tohi2care"

[lbjailer]

Well at least I'm not the only one having this issue. Mine only happens on the tow tune. So far I haven't had a problem with the Transmission only tune. I tried 93 performance tune for a couple of weeks and didn't have a problem with that either, although I was concerned about the higher operating temps accross the board but have since learned they were still within normal operating range. I think eventually there will be enough notice by people experiencing this issue that our problem will be evaluated and fixed. I wonder if everyone's HEX Code has a similiarity that would narrow down the problem? I have accepted the problem of the rough running since its not a frequent issue and just don't push it hard when it occurrs. just pull over, turn off the engine and then starting it back up usually remidies the problem until next event. I have never experienced the issue while on the highway driving freeway speeds it is usually below 40MPH in the city. Although there is this little issue, I am still happy with my Gryphon.

[poolboy]

I thought I was alone with this issue, until I found this thread today. I've had this same problem for about a month now it's happened four times. The last time was today pulling up to a red light, the truck starts shaking and spudder like it's running out of gas. Hitting the gas peddle doesn't help, turn the truck off and restart and all is fine. So far this has only happened with my custom performance tune. If I use my stock tune the truck runs great. I also have a custom tow tune but only use it when pulling my boat and have had no problems with it yet. I hope we can figure this out, I love my Gryphon. 06 Lariat 5.4 43,000.