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2nd Gen Ram Tech 1994-2001 Rams: This section is for TECHNICAL discussions only, that involve the 1994 through 2001 Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.

2000 5.9 4x4 Crazy Shift Issue

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Old 05-11-2013, 12:33 AM
DaveBeth DaveBeth is offline
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Default 2000 5.9 4x4 Crazy Shift Issue

I used to work at a small time garage and when people would come in with problems like this we would usually laugh behind their backs but I know its not in my mind ....lol.

Starting about 9 months ago, one day the truck hangs up in first and wont shift out till abnormal RPMS......I'm headed home and I pull into a gas station, noticing I may be too low on gas to get there. Fill up, panicking about my tranny going start to head home....No Shift problems. Thinking I "Dodged" a bullet.

2 or 3 weeks go by, Shift problem happens again....I'm bummed, trying to rev it high to shift, looking a the gas I notice its, low? Could it be coincidence....Fill up....Fixed. 3-4 more times this happens...Baffled but I use my truck a lot for work so I don't have it checked. Just keep the gas filled up.....

Couple weeks later it returns but not just when low on gas now....Finally throws a code, Get it scanned, speed sensor. So I replace it. Runs fine for a week or two.....Starts missing second sometimes. Another Code, Gets worse and worse, So I take it to local Goodyear, They say it needs a $3000 rebuilt Tranny.

Just doesn't feel that way to me. For a long time it would run fine for a week. Or a day, then mess up here and there. Now, I run it in low, manually torque it up and shift, it to drive. Gets me by, but lately it seems like less and less power, Can hardly pull a trailer up a slight incline.

On another but maybe related note, seemed like either a high pitched rattle or possible ping from the engine under heavy stress for the past couple years, but If I ran High Octane it would go away, now no matter what it comes on at relatively low exertion now.
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Old 05-11-2013, 06:52 AM
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Ham Bone Ham Bone is offline
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Your second problem is probably due the plenum gasket failing. Check the sticky about it

Idk much about trannys so someone else will chime in with their opinion on that
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Old 05-11-2013, 07:37 AM
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dhvaughan dhvaughan is offline
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welcome to DF.

transmission shift problem is related to governor pressure sensor and solenoid. they get clogged up with clutch/band debris, sometimes when the transmission is about shot and sometimes when its not. it might be somehow more sensitive when there's also a speed sensor problem or low gas light or who knows what.

read through the MonteC transmission thread for a lot more info. it'll depress you. but - in general you have a couple of options before a rebuild, that may or may not work. drop the pan and replace or clean the gov press sensor and solenoid, and adjust the bands. sometimes that's a permanent fix, sometimes just a temp fix and waste of time and money - as the trans continues to erode away and re-clogs it. if you decide the trans is shot and you are anywhere within driving distance of Charleston SC, take a vacation there and go see Robert Griffin for a permanent fix. You have to go see him, he doesn't ship transmissions. PATC does but they're a hell of a lot more expensive.


pinging and power loss is probably plenum plate/gasket. there's about a million threads on that and every truck has that problem. get the ebay plate kit from a forum member to save a lot of money.
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Last edited by dhvaughan; 05-11-2013 at 07:41 AM..
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Old 05-11-2013, 10:01 PM
DaveBeth DaveBeth is offline
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Thanks for the tips. I've been researching and reading.......Maybe spend my money on a rebuilt, but $3000 seams pretty high, but I have been out of the loop awhile.
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Old 05-11-2013, 10:15 PM
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$3000 is extremely high. look for about 1/2 that for a standard rebuilt kit, installed and out the door. more fancy parts can run the price up but it should still top out at about $2000-2200 (installed).
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Old 05-11-2013, 10:15 PM
 
 
 
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