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Car shuts off when put in gear

72gsate440

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Dec 10, 2017
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Elizabeth nj
my72 satelite shuts off when I put it in gear . I checked for vacuum leaks, can’t find any ??

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Cool car but to help we need some more information (at least I would)

1. Motor = 440? I'm guessing
2. Cam size and torque converter (Big cam, stock converter?)
3. Does it do it warm and/or cold?
4. What is the idle speed in Neutral?
5. Does it start easily? This helps indicate tuning and motor health.
 
Start manipulating wire harnesses out of gear, vacuum leak? Going into gear will move wiring a little and may open a partially broken wire. Check coil connections.
 
You put it in gear and it "stalls" ?

Or do you put it in gear and it looses electric to the coil?

Don't forget to stop by the "Welcome Wagon".

Welcome!
 
Don't own an auto,but could start neutral switch
be bad.
Can you jump it & see if it is your problem??
 
Place the rear end on jack stands to reduce the load on drive line. run the same test. Ensure your rear end is not binding (brakes, gears) run the drive test to determine if the transmission is not loading your engine. Can you push the vehicle with normal effort in neutral or in gear? Also place a voltmeter on coil to monitor 9-11 vdc when in neutral verses in gear. Potential maybe to low to maintain the spark when in gear. I suspect the transmission maybe locking up the drive line as a last option. Good luck
 
It sounds like it could be your neutral safety switch I could only start mine in neutral it wouldn't start in park.
 
My 72 Satellite has done the same thing several times. In my case it has always been fuel/carb related.
Pulled out the idle screws, sprayed some carb cleaner into holes, blew out holes with compressed air. Re-installed idle screws.....problem gone.
 
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