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

3 Answers

160

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.

Put trans in and won't start. Run before we took it out

Your Answer

Grand Caravan

Looking for a Used Grand Caravan in your area?

CarGurus has 29,380 nationwide Grand Caravan listings starting at $2,233.

ZIP:

Dodge Grand Caravan Experts

  • #1
    Tom Demyan
    Reputation
    2,810
  • #2
    dandyoun
    Reputation
    920
  • #3
    Dan Connell
    Reputation
    620
View All

Related Models For Sale

Used Chrysler Town & Country
348 Great Deals out of 13,391 listings starting at $1,999
Used Honda Odyssey
429 Great Deals out of 30,975 listings starting at $1,490
Used Toyota Sienna
490 Great Deals out of 23,503 listings starting at $999
Used Dodge Caravan
581 listings starting at $1,949
Used Kia Sedona
170 Great Deals out of 7,234 listings starting at $2,750
Used Chrysler Pacifica
90 Great Deals out of 28,358 listings starting at $1,999
Used Nissan Quest
89 Great Deals out of 2,929 listings starting at $2,500
Used Dodge Durango
359 Great Deals out of 24,131 listings starting at $1,500
Used Ford Explorer
1,235 Great Deals out of 69,037 listings starting at $750
Used Ford F-150
3,209 Great Deals out of 219,867 listings starting at $1,200
Used Chevrolet Tahoe
824 Great Deals out of 41,738 listings starting at $1,987
Used Honda Pilot
683 Great Deals out of 40,692 listings starting at $998
Used Chevrolet Suburban
488 Great Deals out of 24,004 listings starting at $1,799

Used Cars For Sale

2017 Dodge Grand Caravan SE For Sale
4 Great Deals out of 3,369 listings starting at $15,453
2016 Dodge Grand Caravan SE For Sale
386 listings starting at $8,999
2015 Dodge Grand Caravan SE For Sale
10 Great Deals out of 439 listings starting at $6,450
2014 Dodge Grand Caravan SE For Sale
9 Great Deals out of 642 listings starting at $5,500
2013 Dodge Grand Caravan SE For Sale
20 Great Deals out of 506 listings starting at $3,999

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.