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Discussion Starter · #1 ·
Hey guys my father sold a 05 3500 2wd drw completely stock truck and we have noticed an issue while comming to a stop. When driving the truck is completly normal and has no engine lights. But when you come to a stop the truck loads up to about 1500 rpm then when you let off the brake and it surges to about 1800 (spins the tires in wet conditions) then falls back to regular idle and performs normally. It is almost 100% consistant and seems to get worse with heat. We are at a stand still as to why it is doing this so i figured i would come to the information central for some help. Any thoughts or suggestions are welcome and appriciated because i have had only 2ng gens and know nothing about the 3rd gens. Thanks guys. and the sooner the better, seems like the guy is wanting his money back and the way business is goin that ins't an option at this point in time. Thanks again
 

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Discussion Starter · #4 ·
no, no check engine lights will there still be codes stored if there isnt any light?
 

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Probably are stored codes...
 

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Do the key thing, you turn the key to on( where the dash lights up) then off - on off-on leave it on and look at the odemeter for codes, have a pen and paper ready and write them down.
 

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Discussion Starter · #8 ·
ok, hes goona check for them and let me know. but until then has anyone experienced anything like this?
 

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sounds like the torque converter is staying locked up. if i hear you right, you come up to a stop sign and the engine loads up alot? what does it do when you are sitting still? If you start it and put it in gear, does it load up? and if you shift into neutral while the engine is loading up does it rev to about 1800 rpm? If it does (torque converter)
 

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Funny you should ask, in my case my truck is a 6 speed and the first time i noticed anything wrong was when i slowed down to get coffee after a short 95 mile drive and when i pushed in the clutch to stop the engine didn't return to idle like it's supposed to, normal is 825-850. Idle was high (1200-1400) and erratic ( up and down) when i stopped and turned engine off and restarted after getting coffee,the idle was normal again. Then 2-3 miles on down the road i started having a dead throttle pedal for a half minute then clear up for a while then dead pedal again, got worse and longer til i had to call a tow truck.
After doing a lot of reading on this site, i read my codes and checked fuel pressure.
I 've ordered and installed a new APPS and so for so good, i hope i fixed it for good!!!
After getting the codes get back on here and find out the next step or steps to take and good luck.
It's a good truck and after correcting a few small problems will last a half a million miles.....
 

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By loading up, do you mean bog down or that the engine speed raised up???
 

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Discussion Starter · #12 ·
definatley does not act like a locked up converter, the truck pushes against you(much like a brake torque) then when you let off the brake it surges for another 300 rpm then idles back down. It is in no way like bogging down the truck. The APPS does deffinatley sound like the culprit, i will have him try that tomorrow. thanks for the input
 
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