Will not drive or reverse

Asked by Mar 19, 2017 at 09:39 AM about the 1997 Jeep Wrangler Sport

Question type: Maintenance & Repair

Check engine lite came on. Coded P0740.  Then
while I was driving it would not go into gear. It was
is a 6 cyl auto

1 Answer

73,125

By the sounds of this it can be repaired. Should take it to a good transmission shop for repair... P0740 JEEP - Torque Converter Clutch Circuit...Possible causes; Low transmission fluid level, Dirty transmission fluid, Faulty torque converter clutch solenoid valve, Torque converter clutch solenoid valve harness is open or shorted, Torque converter clutch solenoid valve circuit poor electrical connection...Torque Converter Clutch (TCC) unlocked for 10 sec., ECM commands converter lock-up and did not record engine speed drop. Possible symptoms, Engine Light ON (or Service Engine Soon Warning Light) Transmission shift shock Vehicle may not shift into the highest gear... P0740 JEEP Description; The torque converter clutch solenoid valve is activated, with the gear in D4, by the Transmission Control Module (TCM) in response to signals sent from the vehicle speed and the Engine Control Module (ECM). Lock-up piston operation will then be controlled. When the torque converter clutch solenoid valve is activated, the torque converter lockup clutch will engage creating a 1 to 1 RPM ratio between the transmission input shaft and the rotational speed of the torque converter. Lock-up operation, however, is prohibited when A/T fluid temperature is too low. When the accelerator pedal is depressed (less than 2/8) in lock-up condition, the engine speed should not change abruptly. If there is a big jump in engine speed, there is no lock-up.

Your Answer

Jeep Wrangler Experts

  • #1
    tennisshoes
    Reputation
    410
  • #2
    Tom Demyan
    Reputation
    380
  • #3
    Mathew Wooldridge
    Reputation
    350
View All

Related Models For Sale

Used Jeep Grand Cherokee
80 Great Deals out of 2,679 listings starting at $1,871
Used Jeep Cherokee
118 Great Deals out of 6,097 listings starting at $11,990
Used Ford Mustang
7 Great Deals out of 1,190 listings starting at $3,500
Used Ford F-150
443 Great Deals out of 9,125 listings starting at $3,000
Used Toyota Tacoma
34 Great Deals out of 795 listings starting at $5,995
Used Chevrolet Camaro
783 listings starting at $12,995
Used Toyota 4Runner
6 Great Deals out of 411 listings starting at $5,995
Used Chevrolet Corvette
704 listings starting at $4,450

Used Cars For Sale

2017 Jeep Wrangler Sport For Sale
648 listings starting at $26,995
2016 Jeep Wrangler Sport For Sale
15 Great Deals out of 43 listings starting at $26,959
2015 Jeep Wrangler Sport For Sale
16 Great Deals out of 45 listings starting at $23,988
2014 Jeep Wrangler Sport For Sale
22 Great Deals out of 53 listings starting at $21,495
2013 Jeep Wrangler Sport For Sale
10 Great Deals out of 36 listings starting at $18,995

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.