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

140

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 out of 7 people think this is helpful.
10

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

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

  • 93 grand caravan le trans lacks high gear 1 answer

    when I get on the freeway the van rpm's go to 5000 at 60 mph. Fluid added it works. 2 days later check gauge light on and it won't dshift into high gear. Problem last year was relay that affected rea...

    1993 Dodge Grand Caravan

    -

    Maintenance & Repair

  • Starter won't engage 1 answer

    I have a 2014 dodge grand caravan SXT. The starter won't engage, so I check the relay and fuses. Nothing seems to be wrong there. So I locate a used starter and change it out. It continues to do t...

    2014 Dodge Grand Caravan SXT

    -

    Maintenance & Repair

  • 08 Grand Caravan - tail light issues 8 answers

    I have on 08 Grand Caravan that the right tail light stopped working on - no signal, no brake lights. The bulb and fuse are good. What is weird (to me anyway) is that the left tail light works, ev...

    2008 Dodge Grand Caravan

    -

    Maintenance & Repair

  • fan continues to run after engine is off 2005 dodge grand caravan 2 answers

    After I turn off my 2005 dodge grand caravan, the fan continues to run and it is draining my battery which is brand new, why would it do that?

    2005 Dodge Grand Caravan

    -

    Maintenance & Repair

  • Transmission 7 answers

    I have a 89 dodge dynasty 3L v6 with auto transmission, 4spd. Car having problems with transmission slipping occasionally. Would the automatic transmission relay have anything to do with this? If s...

    1989 Dodge Dynasty

    -

    Maintenance & Repair

Search Dodge Grand Caravan Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Dodge Grand Caravan Experts

#1 Tom Demyan
Tom Demyan
Reputation 2,480
#2 dandyoun
dandyoun
Reputation 740
#3 FordNut
FordNut
Reputation 680
View All

Related Models For Sale

Used Chrysler Town & Country
548 Great Deals out of 19,951 listings starting at $1,750
Used Toyota Sienna
318 Great Deals out of 25,977 listings starting at $1,000
Used Dodge Caravan
869 listings starting at $3,999
Used Honda Odyssey
370 Great Deals out of 27,566 listings starting at $1,095
Used Kia Sedona
140 Great Deals out of 8,848 listings starting at $1,999
Used Chrysler Pacifica
17 Great Deals out of 24,104 listings starting at $2,850
Used Nissan Quest
92 Great Deals out of 3,200 listings starting at $1,195
Used Dodge Durango
379 Great Deals out of 22,648 listings starting at $1,500
Used Ford Explorer
1,206 Great Deals out of 71,146 listings starting at $1,000
Used Honda Pilot
526 Great Deals out of 19,349 listings starting at $950
Used Ford F-150
3,210 Great Deals out of 205,087 listings starting at $1,779
Used Honda CR-V
907 Great Deals out of 66,875 listings starting at $1,995
Used Chevrolet Tahoe
852 Great Deals out of 28,369 listings starting at $1,700

Used Cars For Sale

2017 Dodge Grand Caravan SE For Sale
5,919 listings starting at $17,330
2016 Dodge Grand Caravan SE For Sale
880 listings starting at $15,000
2015 Dodge Grand Caravan SE For Sale
8 Great Deals out of 504 listings starting at $10,290
2014 Dodge Grand Caravan SE For Sale
8 Great Deals out of 606 listings starting at $7,995
2013 Dodge Grand Caravan SE For Sale
20 Great Deals out of 625 listings starting at $6,000