2006 dodge grand caravan 3.3 transmission won't shift out of low gear could this be caused by the transmission relay?

10

Asked by Jan 21, 2015 at 07:59 AM about the 2006 Dodge Grand Caravan SE

Question type: Maintenance & Repair

2 Answers

150

If you own a Chrysler, Dodge, or Plymouth vehicle and discover that the transmission will shift from first to second gear but will not shift out of second gear, your vehicle has locked itself into “limp-in” mode. That means the computer has detected a problem with the transmission and will not allow it to shift out of second gear in order to prevent further damage to the transmission. The vehicle may shift properly after a restart, only to lock back into limp-in mode again which won’t allow it to shift out of second gear. To diagnose, follow these instructions. First, check for transmission related trouble codes in the computer. You may find any of the following codes: P0700, P0715, P0720, P0731, P0732, P0733, or P0734. You can read any of these codes with an inexpensive code reader. But you’ll need a scan tool with some live data capabilities to continue the diagnosis. Quit whining, they’re not that expensive and if you want to fix your own vehicle you have to have the right tools The problem is usually caused because the Transmission Control Module (TCM) cannot determine the input or output shaft speed. To the TCM that can mean one of two things; either the sensor is bad, or there’s an internal problem with the transmission. input shaft sensor, turbine sensor, transmission won't shift out of second gearoutput shaft sensor, transmission won't shift out of second gear Connect your scan tool and start the engine, leaving the transmission in PARK. The engine RPM should closely match the Input Shaft (also called the Turbine shaft). This should be logical; the engine turns the torque converter at the same speed as the engine and the Input Shaft sensor is clocking the speed of the torque converter. If that checks out, drive the vehicle slowly and watch the speed of the Output Shaft Sensor. It should rise slowly, corresponding to your vehicle speed. If either sensor is off or completely dead, replace it with a factory sensor. You read that right, a genuine Chrysler part. Trust me on this, you’ll regret buying an aftermarket sensor. I’ve seen too many people put those in and continue to have the same problem only to find the aftermarket sensor isn’t accurate. You can also test the sensor with a digital ohm meter. It should read about 800 ohms. Also, verify that the wiring harness and connectors are in good shape.

7 of 7 people found this helpful.
10

Thank You, We have a P0750 code shift solenoid. We are going to transmission mechanic. Grandparog

1 of 1 people found this helpful.

Your Answer

Add photo

Related Questions

Search Dodge Grand Caravan Questions

Dodge Grand Caravan Experts

#1 Tom Demyan
Tom Demyan
Reputation 2,640
#2 dandyoun
dandyoun
Reputation 840
#3 Dan Connell
Dan Connell
Reputation 560
View All

Related Models For Sale

Used Chrysler Town & Country
272 Great Deals out of 16,150 listings starting at $900
Used Honda Odyssey
212 Great Deals out of 20,894 listings starting at $1,900
Used Toyota Sienna
224 Great Deals out of 29,699 listings starting at $1,495
Used Dodge Caravan
667 listings
Used Kia Sedona
109 Great Deals out of 8,966 listings starting at $2,200
Used Chrysler Pacifica
49 Great Deals out of 27,731 listings starting at $1,900
Used Nissan Quest
64 Great Deals out of 2,759 listings starting at $2,499
Used Dodge Durango
266 Great Deals out of 21,282 listings starting at $1,499
Used Ford Explorer
926 Great Deals out of 70,243 listings starting at $997
Used Ford F-150
2,068 Great Deals out of 207,301 listings starting at $1,499
Used Honda Pilot
391 Great Deals out of 22,287 listings starting at $1,500
Used Ford Escape
1,421 Great Deals out of 90,829 listings starting at $900
Used Chevrolet Tahoe
556 Great Deals out of 31,361 listings starting at $1,500

Used Cars For Sale

2017 Dodge Grand Caravan SE For Sale
5,659 listings starting at $16,997
2016 Dodge Grand Caravan SE For Sale
503 listings starting at $9,499
2015 Dodge Grand Caravan SE For Sale
395 listings starting at $7,995
2014 Dodge Grand Caravan SE For Sale
5 Great Deals out of 625 listings starting at $6,500
2013 Dodge Grand Caravan SE For Sale
13 Great Deals out of 556 listings starting at $6,900

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.