04.5 throttle not responding correctly

[befrazier]

Well the problem has come back after 12 days of driving. I was going to work this morning and hit a bump and the same problem again. Suppose to go on vacation in 4 days, now I am very leary. Don't know what to do at this point?

 

[p-Bar]

I think you have an issue with wiring check the electrical connectors you unplugged and pull them apart and use some contact cleaner in them. Doesn't the "bump" make you start thinking here???

 

[befrazier]

Yea, going to do just that and put some dielectric grease on the connections. I really thought that after driving it 12 days straight and no problems it was the battery.

Thanks for your input p-Bar.

 

[befrazier]

The engine light went off when I started the truck up for the trip home. When I got home I tried to simulate a bump by wiggling wires and checking for a engine light. I had no luck making the light come on. I went ahead and cleaned the connection and added some dielectric grease to it. Just drove it 15 miles to work and no problem. Only time will tell. I will keep you posted on the outcome.

 

[RChase]

The engine light went off when I started the truck up for the trip home. When I got home I tried to simulate a bump by wiggling wires and checking for a engine light. I had no luck making the light come on. I went ahead and cleaned the connection and added some dielectric grease to it. Just drove it 15 miles to work and no problem. Only time will tell. I will keep you posted on the outcome.

I have had the P2121 code show up and the running problems changed the fuel filter and no problem done this several times.



RETTOPC

 

[RChase]

I have had the same problem with P2121 code I changed the fuel filter problem solved. Did that several times.

RChase

 

[befrazier]

It just so happens that I changed my fuel, air, oil and oil filter after I did the dielectric grease thing. So maybe all problems are solved? Going ahead to Colorado tomorrow will drive approximately 2,000 miles. Will keep in touch.

Thanks, Brian

 

[befrazier]

I just got back from Colorado. I drove the truck over plenty of rough roads and smooth roads. Everything seems to be good at this point, no problems. Thanks to all of you for your responses. You all have been helpful.

 

[stick]

I just got back from Colorado. I drove the truck over plenty of rough roads and smooth roads. Everything seems to be good at this point, no problems. Thanks to all of you for your responses. You all have been helpful.

Even me?

How was Colorado,any fish?



Stick

 

[befrazier]

Yea even you Stick. The fishing was good, caught limit everyday I fished in the streams. The river was a different story. The limit is only like 4 fish unless you can catch some Brooke trout. I caught 1 Cut Throat, 1 Cut Bow and a bunch of Browns. Lots of fun fly fishing. I love it. The weather seemed a little warmer than normal but still nice. Back home now and weather is steamy. Working OT this week and it is HOT in here. It's hard to come back from CO. into this heat but I can't stay forever.



Brian

 

[befrazier]

I talked to timmbo apps guy and he made me a new pigtail plug that plugs into the apps sensor under the battery box. I had a guy take the old plug off and install the new plug. He noticed on the old plug that there were two pins loose inside of it. The truck runs great now. Any of the trucks that have the apps under the battery and is having the reoccurring codes may need to check this out. I have had this issue for several years and have bought two sensors with the same problem coming back. I had the guy check out the older apps sensors and they both worked fine. Hopefully this long process, trial and error, determination and the help from TDR and timmbo apps my problems are gone.

 

[befrazier]

The APPS problem came back a couple of months after the pigtail replacement. Although I needed to replace the pigtail anyhow. I unplugged the two big electric plugs attached to the firewall on the drivers side, cleaned with electronic cleaner and put dielectric grease on every small pin hole and plugged back in. I was reluctant to post for quite some time after I did this because of the past failures. I have not had any problems for approximately 9 to 10 months now. Hope this may help someone.

 

[rrowdy]

I just got back from Colorado. I drove the truck over plenty of rough roads and smooth roads. Everything seems to be good at this point, no problems. Thanks to all of you for your responses. You all have been helpful.

And thank's to you for posting the results of what you've done. Too many times someone posts a problem they're having and we never hear what they did to resolve their problem.

Good luck!

 

[Dieselman359]

I've been having similar throttle issues with mine for sometime now. You'll be driving along, the check engine light will come on and the throttle will take off to approximately 2500 RPM and hang there and shutter. That's if you stay in the throttle...if you let off of the throttle, it's like you side-stepped the throttle under full power. Very harsh. Its a pain, but thanks for the insight, now I know where to start looking.

 

[Jbremount]

I washed my engines bay and got water on the battery and battery box. I waited a few hours to start the truck, but when I did, I got a check engine light and scanned the code of P2121. Do I need to clean the APPS plug or plugs and add dielectric grease? If I pull the APPS plug to add grease, will I need to recalibrate anything?

 

[Wayne M.]

Don't know if this will help, but I had 2121 also. I also had P0420, the fan code. I found a green wire in the fan harness and fixed it. But the 2121 kept haunting me but never stranded me- it would idle funny as if someone was jogging a toggle switch on/off. Then I got 420 back, and realized that I would have to replace the fan clutch because there was no more room to repair the harness. So I put a mopar clutch in.
Its been months but I think everything is fixed. I guess the harness issue at the fan clutch was causing a spike that made its way into the apps.

Also, to the member who had the batteries tested at Napa, were they disconnected from each other? Dual batts must always be tested separately.