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Transmissions Codes P0700 & more

 
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  #1 (permalink)  
Old 16 Jan 2017, 01:06 pm
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Join Date: Aug 2013
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Default Transmissions Codes P0700 & more

I headed up to Walmart this AM, to grab some Mobil1 Synthetic oil. All was well on my way. When I returned to head back to the house, I backed out of the parking space and shifted into Drive. Within the matter of seconds, I heard the chime from the check engine light. Once out of the Walmart parking and onto the 45mph street, I noticed what appeared to be the transmission stuck in 2nd gear. My home is only 5 minutes from Walmart, with the majority of the travel in 25mph zones. I returned home, grabbed my OBDII reader and discovered the following codes:


P0700 - Transmission Control System Malfunction Indicator Lamp
P0846 - Transmission Pressure Sensor Switch B Circuit
P0841 - Transmission Fluid Pressure Sensor/Switch A Circuit Range

An additional code was found outside of the transmission codes:
P0325 -Knock Sensor 1 Circuit Malfunction

I've seen a few other threads with these codes, but I didn't see any that were experiencing what appears to be hung in one gear. The vehicle shifts into Reverse, Neutral & Drive, fine. However, it appears in Drive, is only running in 2nd/3rd.

Any thoughts or others who've experienced a similar scenario, is greatly appreciated! Thanks.
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Last edited by Nvizn; 16 Jan 2017 at 01:25 pm.
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Old 16 Jan 2017, 02:12 pm
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Default Re: Transmissions Codes P0700 & more

P0841

Possible causes

- Transmission Solenoid/Pressure Switch harness is open or shorted
- Transmission Solenoid/Pressure Switch circuit poor electrical connection
- Faulty Transmission Solenoid/Pressure Switch
- Internal transmission damage
- Faulty Engine Control Module (ECM)
- Faulty Transmission Control Module (TCM)


Possible symptoms:

Transmission will not shift gears.


What year is your PT Cruiser?

Have you tried resetting the engine trouble codes with an OBDII Scan Tool to see if the same exact codes come back?

Have you done a battery load test to make sure the battery voltage does not drop enough to trigger random codes?

Are you sure you are getting both 2nd & 3rd gears and not limp mode?

I would suggest checking the TCM wires and contacts. Some members have had critters climb into the area where the TCM wires are next to the transmission and chew through the wires.
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Last edited by ptcruisersteve; 16 Jan 2017 at 02:17 pm.
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Old 16 Jan 2017, 02:41 pm
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Default Re: Transmissions Codes P0700 & more

Quote:
Originally Posted by ptcruisersteve View Post



What year is your PT Cruiser?

Have you tried resetting the engine trouble codes with an OBDII Scan Tool to see if the same exact codes come back?

Have you done a battery load test to make sure the battery voltage does not drop enough to trigger random codes?

Are you sure you are getting both 2nd & 3rd gears and not limp mode?

I would suggest checking the TCM wires and contacts. Some members have had critters climb into the area where the TCM wires are next to the transmission and chew through the wires.
2005 w/ FWDPerformance Stage 1

Absolutely. Codes return.

I have not. The battery is <1 year. I believe it was replaced over the summer.

I'm getting one gear, it's either 2nd or 3rd. Just from a phone conversation, the Dealership thought it was 3rd. At approximately 40mph, it's rotating at 3000rpm's.

I'll locate and give it a check.
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**2008 PT Cruiser
**2007 Chevy HHR LS - Transition to LT - 18" Solstice Wheels 235/45 & 225/45
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Last edited by Nvizn; 16 Jan 2017 at 02:57 pm.
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Old 16 Jan 2017, 04:41 pm
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Default Re: Transmissions Codes P0700 & more

Is yours an autostick? If so, does it shift through all of the gears manually?
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Old 16 Jan 2017, 05:03 pm
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Default Re: Transmissions Codes P0700 & more

Quote:
Originally Posted by chuzz View Post
Is yours an autostick? If so, does it shift through all of the gears manually?
Unfortunately, it is not an autostick.

Just to add on, I haven't had any previous signs of problems. The vase majority of my vehicles over the years have been manuals. However, I do know in typical situations, indications of a faulty transmission is usually forewarned by signs like slippage, hard shifting, etc.

I had to replace the valve body in my wife's VW Beetle, a few years back, due to hard shifting. My PT has given no indications of transmission problems, up to this incident.
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**2008 PT Cruiser
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Last edited by Nvizn; 16 Jan 2017 at 05:08 pm.
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Old 16 Jan 2017, 05:35 pm
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Default Re: Transmissions Codes P0700 & more

i would try a fancier scanner, even if you need to stop by a shop and ask.. at least you'll have more specific codes.

http://www.ptcruiserlinks.com/forum/...tml#post569735

sorry to hear. trans issues are a bummer.
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Old 16 Jan 2017, 09:56 pm
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Default Re: Transmissions Codes P0700 & more

Quote:
Originally Posted by rob302 View Post
i would try a fancier scanner, even if you need to stop by a shop and ask.. at least you'll have more specific codes.

http://www.ptcruiserlinks.com/forum/...tml#post569735

sorry to hear. trans issues are a bummer.
No problem. Thanks. I telecommute on Friday's and I'm scheduled to bring it in to the dealership for a diagnostic, this Friday.
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Build Thread: http://www.ptcruiserlinks.com/forum/...ser-turbo.html
**2008 PT Cruiser
**2007 Chevy HHR LS - Transition to LT - 18" Solstice Wheels 235/45 & 225/45
[IMG][/IMG]
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Old 16 Jun 2017, 04:30 pm
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Default Re: Transmissions Codes P0700 & more

As suspected, diagnosis is transmission solenoid pack.

I've purchased a new pack, gasket, 2 speed sensors, transmission filter and gasket, for $100, shipped. The dealer wanted $627, to replace the solenoid pack.
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Build Thread: http://www.ptcruiserlinks.com/forum/...ser-turbo.html
**2008 PT Cruiser
**2007 Chevy HHR LS - Transition to LT - 18" Solstice Wheels 235/45 & 225/45
[IMG][/IMG]
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Old 16 Jun 2017, 04:51 pm
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Default Re: Transmissions Codes P0700 & more

Quote:
Originally Posted by Nvizn View Post
As suspected, diagnosis is transmission solenoid pack.

I've purchased a new pack, gasket, 2 speed sensors, transmission filter and gasket, for $100, shipped. The dealer wanted $627, to replace the solenoid pack.
I just went through that on my PT, I had to have it done at a shop as they have to warranty the parts, wasn't quite as expensive as what your dealership wants. You'll have to remove the battery support bracket to gain access, and according to the tech, two of the bolts are not easy to get to. Also, after pack replacement, per the Service Manual, you will have to have the Quick Learn procedure programmed to the vehicle.
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Old 17 Jun 2017, 07:35 am
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Default Re: Transmissions Codes P0700 & more

I see you started that post in January and here it is the middle of June. Did you just park your PT for that long or what? Replacing the solenoid pack is NOT a difficult job. I did mine 3 times before I got a good one at the salvage yard. First time, mine had a leak and I tried removing and JB Welding it. Still leaked. Second time, went to junkyard and got one, installed it, didn't work! Went back to junkyard, returned defective one, got another one and it worked. No big deal. Do you have yours fixed now?
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