auto tranny problems...

***rickb1422*** · 11-04-2009, 10:00 PM

my transmission is acting funny, at low speeds it lurches and wont upshift, the engine will rev up and then drop and keep repeating itself....while cruising when i need to slow down the tranny wont down shift and i will have to put the truck in neutral

__________________
24v valve 5.9 cummins ,automatic tranny, boost controller, 37psi, 4" downpipe no muffler 7" stacks, powertrax rear end.boost,pyrometer, and trans temp gauges, silencer ring MIA, 52 block3.55 gears, Diablo sport power puck

BLEW 2ND GEAR RACING A HONDA AND I STILL SMOKED HIM!

00sport24v · 11-04-2009, 10:54 PM

A friend of mine had some issues like that and said it was a speed sensor on the trans. I'm not sure how you would test it though. Did it throw any codes? I think the speed sensor is a common issue, and a cheap easy fix, so hopefully thats it. Good luck.

__________________
00 reg. cab auto sport4wd-Edge JWA, Fass150, Stacks, bhaf, Halo's, A.R.wheels, 285stt's, Smoke Switch

Lonn23 · 11-05-2009, 12:43 AM

I am actually having the same issue. How exactly do you go about finding out if it is the speed sensor. How much does having this replaced or fixed usually run? Thanks for your help.

00sport24v · 11-05-2009, 01:47 AM

I think the part is only like 20 some dollars, and it is an easy thing to do yourself, if that is the problem. I'm not sure if the truck will throw a code for that or not.

Hopefully someone on here can help you better. If you cycle your key switch to on 3 times without starting your engine, then leave it on the third time it will give you the codes, if you have any, where your digital odometer is.

__________________
00 reg. cab auto sport4wd-Edge JWA, Fass150, Stacks, bhaf, Halo's, A.R.wheels, 285stt's, Smoke Switch

Jesse N. · 11-05-2009, 02:12 AM

I bought my truck from a guy who said the tranny was out of it. It was acting very similar to yours. I put a scan tool on it and the governer pressure sensor was reading 33psi all the time, even with the engine off. The temp thermister was reading -12* even though I just drove it 15 miles to town. The temp thermister is built into the governer press sensor. I replaced both the sensor and governer press solenoid at the same time. Parts were about $150.

Oops, some how I ended up in the wrong forum. Mine is an 3rd gen. Not sure if your would be the same

Last edited by Jesse N. : 11-05-2009 at 02:19 AM.

***rickb1422*** · 11-05-2009, 08:07 AM

i cycled the key this morning and this is what i got

pcm codes
p0743
p0622
p1765

ecm codes
p1693

not sure want any of them mean....

__________________
24v valve 5.9 cummins ,automatic tranny, boost controller, 37psi, 4" downpipe no muffler 7" stacks, powertrax rear end.boost,pyrometer, and trans temp gauges, silencer ring MIA, 52 block3.55 gears, Diablo sport power puck

BLEW 2ND GEAR RACING A HONDA AND I STILL SMOKED HIM!

***Galliganjr*** · 11-05-2009, 09:02 AM

I replaced my speed sensor aswhile 20$! Ifyou do it fast enough you only need to replace one quart of fluid lol but don't do it in Autozone parking lot they get mad lol!

__________________
99 quad cab short bed auto all stock 4x4
injection pump 8/08, apps sensor 10/09

***rickb1422*** · 11-05-2009, 10:13 AM

haha ok thanks ill do it in my neighbors driveway when he isnt home..... we dont get along

__________________
24v valve 5.9 cummins ,automatic tranny, boost controller, 37psi, 4" downpipe no muffler 7" stacks, powertrax rear end.boost,pyrometer, and trans temp gauges, silencer ring MIA, 52 block3.55 gears, Diablo sport power puck

BLEW 2ND GEAR RACING A HONDA AND I STILL SMOKED HIM!

***Galliganjr*** · 11-05-2009, 11:04 AM

Nice ha

__________________
99 quad cab short bed auto all stock 4x4
injection pump 8/08, apps sensor 10/09

00sport24v · 11-05-2009, 12:48 PM

You can google those codes and find out what they are. Neighbors driveway....I like it.

__________________
00 reg. cab auto sport4wd-Edge JWA, Fass150, Stacks, bhaf, Halo's, A.R.wheels, 285stt's, Smoke Switch

***rickb1422*** · 11-05-2009, 01:52 PM

none of those codes are related to the speed sensor, they all have to do with the torque converter lockup switch i had installed about 4 months ago and used twice and took out of the truck...

__________________
24v valve 5.9 cummins ,automatic tranny, boost controller, 37psi, 4" downpipe no muffler 7" stacks, powertrax rear end.boost,pyrometer, and trans temp gauges, silencer ring MIA, 52 block3.55 gears, Diablo sport power puck

BLEW 2ND GEAR RACING A HONDA AND I STILL SMOKED HIM!

11-04-2009, 10:00 PM	#1 (permalink)
*rickb1422* Cummins Fanatic Join Date: Sep 2009 Location: wallingford connecticut Posts: 123 Thanks: 8 Thanked 1 Time in 1 Post rickb1422's Truck Pics	auto tranny problems... my transmission is acting funny, at low speeds it lurches and wont upshift, the engine will rev up and then drop and keep repeating itself....while cruising when i need to slow down the tranny wont down shift and i will have to put the truck in neutral __________________ 24v valve 5.9 cummins ,automatic tranny, boost controller, 37psi, 4" downpipe no muffler 7" stacks, powertrax rear end.boost,pyrometer, and trans temp gauges, silencer ring MIA, 52 block3.55 gears, Diablo sport power puck BLEW 2ND GEAR RACING A HONDA AND I STILL SMOKED HIM!

11-05-2009, 12:43 AM	#3 (permalink)
Lonn23 Newbie Join Date: Oct 2009 Posts: 4 Thanks: 0 Thanked 0 Times in 0 Posts Lonn23's Truck Pics	same issue I am actually having the same issue. How exactly do you go about finding out if it is the speed sensor. How much does having this replaced or fixed usually run? Thanks for your help.

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11-04-2009, 10:54 PM	#2 (permalink)
00sport24v Cummins Fan Join Date: Jan 2009 Location: Central PA Posts: 41 Thanks: 3 Thanked 2 Times in 2 Posts 00sport24v's Truck Pics	A friend of mine had some issues like that and said it was a speed sensor on the trans. I'm not sure how you would test it though. Did it throw any codes? I think the speed sensor is a common issue, and a cheap easy fix, so hopefully thats it. Good luck. __________________ 00 reg. cab auto sport4wd-Edge JWA, Fass150, Stacks, bhaf, Halo's, A.R.wheels, 285stt's, Smoke Switch

11-05-2009, 01:47 AM	#4 (permalink)
00sport24v Cummins Fan Join Date: Jan 2009 Location: Central PA Posts: 41 Thanks: 3 Thanked 2 Times in 2 Posts 00sport24v's Truck Pics	I think the part is only like 20 some dollars, and it is an easy thing to do yourself, if that is the problem. I'm not sure if the truck will throw a code for that or not. Hopefully someone on here can help you better. If you cycle your key switch to on 3 times without starting your engine, then leave it on the third time it will give you the codes, if you have any, where your digital odometer is. __________________ 00 reg. cab auto sport4wd-Edge JWA, Fass150, Stacks, bhaf, Halo's, A.R.wheels, 285stt's, Smoke Switch

11-05-2009, 02:12 AM	#5 (permalink)
Jesse N. Newbie Join Date: Jul 2009 Posts: 4 Thanks: 0 Thanked 0 Times in 0 Posts Jesse N.'s Truck Pics	I bought my truck from a guy who said the tranny was out of it. It was acting very similar to yours. I put a scan tool on it and the governer pressure sensor was reading 33psi all the time, even with the engine off. The temp thermister was reading -12* even though I just drove it 15 miles to town. The temp thermister is built into the governer press sensor. I replaced both the sensor and governer press solenoid at the same time. Parts were about $150. Oops, some how I ended up in the wrong forum. Mine is an 3rd gen. Not sure if your would be the same Last edited by Jesse N. : 11-05-2009 at 02:19 AM.

11-05-2009, 08:07 AM	#6 (permalink)
*rickb1422* Cummins Fanatic Join Date: Sep 2009 Location: wallingford connecticut Posts: 123 Thanks: 8 Thanked 1 Time in 1 Post rickb1422's Truck Pics	i cycled the key this morning and this is what i got pcm codes p0743 p0622 p1765 ecm codes p1693 not sure want any of them mean.... __________________ 24v valve 5.9 cummins ,automatic tranny, boost controller, 37psi, 4" downpipe no muffler 7" stacks, powertrax rear end.boost,pyrometer, and trans temp gauges, silencer ring MIA, 52 block3.55 gears, Diablo sport power puck BLEW 2ND GEAR RACING A HONDA AND I STILL SMOKED HIM!

11-05-2009, 09:02 AM	#7 (permalink)
*Galliganjr* GalliganJr Join Date: Sep 2009 Location: Wallkill NY Posts: 58 Thanks: 14 Thanked 1 Time in 1 Post Galliganjr's Truck Pics	I replaced my speed sensor aswhile 20$! Ifyou do it fast enough you only need to replace one quart of fluid lol but don't do it in Autozone parking lot they get mad lol! __________________ 99 quad cab short bed auto all stock 4x4 injection pump 8/08, apps sensor 10/09

11-05-2009, 10:13 AM	#8 (permalink)
*rickb1422* Cummins Fanatic Join Date: Sep 2009 Location: wallingford connecticut Posts: 123 Thanks: 8 Thanked 1 Time in 1 Post rickb1422's Truck Pics	haha ok thanks ill do it in my neighbors driveway when he isnt home..... we dont get along __________________ 24v valve 5.9 cummins ,automatic tranny, boost controller, 37psi, 4" downpipe no muffler 7" stacks, powertrax rear end.boost,pyrometer, and trans temp gauges, silencer ring MIA, 52 block3.55 gears, Diablo sport power puck BLEW 2ND GEAR RACING A HONDA AND I STILL SMOKED HIM!

11-05-2009, 11:04 AM	#9 (permalink)
*Galliganjr* GalliganJr Join Date: Sep 2009 Location: Wallkill NY Posts: 58 Thanks: 14 Thanked 1 Time in 1 Post Galliganjr's Truck Pics	Nice ha __________________ 99 quad cab short bed auto all stock 4x4 injection pump 8/08, apps sensor 10/09

11-05-2009, 12:48 PM	#10 (permalink)
00sport24v Cummins Fan Join Date: Jan 2009 Location: Central PA Posts: 41 Thanks: 3 Thanked 2 Times in 2 Posts 00sport24v's Truck Pics	You can google those codes and find out what they are. Neighbors driveway....I like it. __________________ 00 reg. cab auto sport4wd-Edge JWA, Fass150, Stacks, bhaf, Halo's, A.R.wheels, 285stt's, Smoke Switch

11-05-2009, 01:52 PM	#11 (permalink)
*rickb1422* Cummins Fanatic Join Date: Sep 2009 Location: wallingford connecticut Posts: 123 Thanks: 8 Thanked 1 Time in 1 Post rickb1422's Truck Pics	none of those codes are related to the speed sensor, they all have to do with the torque converter lockup switch i had installed about 4 months ago and used twice and took out of the truck... __________________ 24v valve 5.9 cummins ,automatic tranny, boost controller, 37psi, 4" downpipe no muffler 7" stacks, powertrax rear end.boost,pyrometer, and trans temp gauges, silencer ring MIA, 52 block3.55 gears, Diablo sport power puck BLEW 2ND GEAR RACING A HONDA AND I STILL SMOKED HIM!