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What causes a car to have considerably more drag while coasting when in drive than in neutral?

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2011-09-13 22:21:15
2011-09-13 22:21:15

Transmission trouble?

I assume you are referring to normal circumstances? A trans in drive has clutch packs applied and some connection to the engine via the torque convertor. this will cause a slight drag in coasting. In neutral the connection to the engine is "broken" since the trans is out of gear.

AnswerProblem occurs when in drive, correct? Answeryes, the problem is in when i have the trans in drive, it is a pretty new jasper trans and has about 2 years left on warrenty. i heard some clunking from the trans area, which quickly went away, but afterwards the car had much more drag in drive and the speedometer isn't functioning correctly anymore. 93 Plymouth grand voyager se 3.3 engine AnswerSince many speedometers are connected to the transmission, it sounds as though you have a major problem inside the transmission. I would have it looked at right away. The increased drag that you are noticing may be causing more damage with every mile, and it can't be good for your gas mileage either (gas prices keep rising daily).

Many speedometers are connected to the end of the transmission nearest to the drive shafts. Since the drive shaft is connected to the wheels, it will always show the right speed.

Not getting it fixed promptly may void your warranty, or your warranty may lapse before you get it fixed for free. And that wouldn't be fun. You also don't want it to fail and leave you stranded somewhere when you are in a hurry to go someplace important.

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pushing slowly around a parking lot or repair shop towing ..always tow with drive wheels off the ground. "coasting"...placing transmission in neutral at highway speeds and coasting downhill, for example, very bad for transmission and also illegal in most jurisdictions. Reason: lubrication of internal components is considerably reduced and results in abnormal wear and early transmission failure. Coasting is classified as not having the vehicle under proper control because of the lack of engine braking capability, and also not being able to accelerate immediately if such action is required. Hope this clarifies the issue.

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your shift solenoid a is stuck open in your tranny time for a gagage visit

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if its a manual transmission in neutral and 4 wheel drive in neutral with brake off. if its an automatic you will have to pull the drive line to rear wheels and place 4 wheel drive in neutral with brake off.

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