Grrrr...New/ old problem with 97 350...help
Post Fiend
Joined: Apr 2004
Posts: 12,835
Likes: 3
From: Silver Lake Dunes, MI
Originally Posted by FL_BWAB
Started her up...she did the same thing. I put it in neutral and no change. Hit the gas pedal and took her to 2000 rpm's and she was fine again.
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Junior User
Joined: Mar 2007
Posts: 72
Likes: 0
From: SAMSULA
Well got in the truck this morning and it started up fine. No bucking at all. It has started up fine ever since. Im truly puzzled on this one but im gonna replace the trs for now and then if it does it again ill pull the icp and see what she does. These things amaze me sometimes.
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Junior User
Joined: Mar 2007
Posts: 72
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From: SAMSULA
Originally Posted by strokin'_tatsch
will the idle smooth out if you don't touch the gas petal? mine does it as well and it is normal as far as i've heard and seen with these trucks. try the icp then let us know.
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Junior User
Joined: Mar 2007
Posts: 72
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From: SAMSULA
Digital Transmission Range (TR) Sensor
The digital transmission range sensor is located on the outside of the transmission at the manual lever. The sensor completes the start circuit in Park and Neutral, the back-up lamp circuit in Reverse and a neutral sense circuit for GEM control of 4 x 4 low engagement. The sensor also opens/closes a set of four switches that are monitored by the Powertrain Control Module (PCM) to determine the position of the manual lever (P, R, N, (D), 2, 1).
***Just found this on some other site. If I read this right the trs also controls the reverse lamps. Sunday I had the truck out in the woods. When I was backing up my wife noticed that the reverse lights were not on. I backed over a tree stump and when the truck shook the lights came back on. Just assumed that it was one of those wierd thing that this truck does. Is it possible that this could confirm that this is a trs problem?
The digital transmission range sensor is located on the outside of the transmission at the manual lever. The sensor completes the start circuit in Park and Neutral, the back-up lamp circuit in Reverse and a neutral sense circuit for GEM control of 4 x 4 low engagement. The sensor also opens/closes a set of four switches that are monitored by the Powertrain Control Module (PCM) to determine the position of the manual lever (P, R, N, (D), 2, 1).
***Just found this on some other site. If I read this right the trs also controls the reverse lamps. Sunday I had the truck out in the woods. When I was backing up my wife noticed that the reverse lights were not on. I backed over a tree stump and when the truck shook the lights came back on. Just assumed that it was one of those wierd thing that this truck does. Is it possible that this could confirm that this is a trs problem?
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Junior User
Joined: Mar 2007
Posts: 72
Likes: 0
From: SAMSULA
I have not had a chance to replace the TRS in this yet when it started acting up again. Same story...just different day. Took it to a friend of mine who pulled the P0236 code from it. I know that this is the Turbo Boost Sensor but from what I read my problems and this sensor dont seem to match up. Any suggestions on where I go from here?
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Hotshot
Joined: Aug 2006
Posts: 10,764
Likes: 39
A little reading for ya...
- DTC P0236 indicates a turbo boost sensor A circuit performance concern.
- DTCs P1247, P1248 indicate turbo boost pressure was low or not detected.
- Possible causes:
- damaged MAP hose
- low turbo boost
- intake manifold or crossover tube hose leaks
- damaged MAP sensor
- damaged PCM
- Inspect MAP sensor hose and manifolds for damage, leaks, restriction and misrouting.
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Junior User
Joined: Mar 2007
Posts: 72
Likes: 0
From: SAMSULA
hummmm...No response from anyone can not be good. Just to throw this out there. I just unpluged the icp sensor and it still did its thing. If it was the TRS would it throw a code? I dont mind replacing it but doing so kinda seems like a pain in the you know what. Im not sure even where it is, and I know nothing about trannys.
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Junior User
Joined: Mar 2007
Posts: 72
Likes: 0
From: SAMSULA
Gonna try and replace it this weekend. Not exactly sure how to get to it, but Im sure i will find something on the internet that will help. tjbeggs....your slacking LOL. you got pictures of everything else and its locations, but not this. Your gonna have to change yours and take pics when you do it so us retards have some direction. It sure would help me out. Thanks for the help as usual though
Post Fiend
Joined: Apr 2004
Posts: 12,835
Likes: 3
From: Silver Lake Dunes, MI
Well let me see if I can help you out. Never changed one but fromt he last time I looked at one it looks like there was a nut that holds the shift lever one. take that nut off. Then disconnect the electrical connector. then I think there are 2 bolts that hols the sensor on there. I think it has slotted holes so I am guessing it needs some adjusting but not sure.
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Junior User
Joined: Mar 2007
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Likes: 0
From: SAMSULA
Originally Posted by tjbeggs
Well let me see if I can help you out. Never changed one but fromt he last time I looked at one it looks like there was a nut that holds the shift lever one. take that nut off. Then disconnect the electrical connector. then I think there are 2 bolts that hols the sensor on there. I think it has slotted holes so I am guessing it needs some adjusting but not sure.