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Electrical good, won't turn over #2437620
01/19/18 07:49 PM
01/19/18 07:49 PM
Joined: Dec 2004
Posts: 733
Northern Virginia
Moparmaniacc Offline OP
super stock
Moparmaniacc  Offline OP
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Northern Virginia
It's been a long, cold couple months, but today was nice...so I charged up the battery from 70% to about 85% and tried to go for a ride. The headlights, radio, and 4-spd backup light work fine - but engine will not even begin to turn over. I think it's the clutch switch. To verify that, I would jump the terminals going to the green and yellow wires on the solenoid - right??
Come to think of it....let's speculate that it's been going bad gradually....could a partially defective clutch switch (e.g., high resistance) cause any performance problems?

Re: Electrical good, won't turn over [Re: Moparmaniacc] #2437626
01/19/18 08:01 PM
01/19/18 08:01 PM
Joined: May 2003
Posts: 96,649
On The Boat, On The Lake, Wa. ...
amxautox Offline
Still Retired. Still Posting on Moparts. A Lot.
amxautox  Offline
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On The Boat, On The Lake, Wa. ...
what car?


Tom

"Everyone should believe in something; I believe I'll go fishing."

-Henry David Thoreau

Men and fish are alike. They both get into trouble when they open their mouths

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Re: Electrical good, won't turn over [Re: Moparmaniacc] #2437658
01/19/18 08:47 PM
01/19/18 08:47 PM
Joined: Dec 2004
Posts: 733
Northern Virginia
Moparmaniacc Offline OP
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Northern Virginia
Sorry, 70 Chally R/T, 440 4-spd. Solenoid is right next to battery.

Re: Electrical good, won't turn over [Re: Moparmaniacc] #2437733
01/19/18 11:42 PM
01/19/18 11:42 PM
Joined: Jan 2003
Posts: 10,486
Freeport IL USA
poorboy Offline
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Freeport IL USA
The clutch switch is a simple off-on between the solenoid and ground. If you ground the wire leading to the clutch switch, the motor should crank with the key. Other then the start circuit, the clutch switch shouldn't be involved in any other function unless you have cruise control, then it would be involved in disengaging the cruise. The clutch switch on a stick trans replaced the park-neutral switch on an automatic trans.

You can also jump from the battery post on the solenoid to the small wire going to the starter and the starter should crank, be sure the car is out of gear first though.

If your having other performance issues, I would look at the ignition switch and the bulkhead connector for corroded wire terminals. Gene

Re: Electrical good, won't turn over [Re: poorboy] #2437740
01/19/18 11:56 PM
01/19/18 11:56 PM
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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RapidRobert Offline
Circle Track
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Lincoln Nebraska
What Gene said, ground the clutch switch male terminal that's on the starter relay & see if it will (now) crank. see if the yellow "ign" wire at the starter relay is hot when the key is turned to "start".


live every 24 hour block of time like it's your last day on earth
Re: Electrical good, won't turn over [Re: RapidRobert] #2437935
01/20/18 01:59 PM
01/20/18 01:59 PM
Joined: Sep 2003
Posts: 19,237
north of coder
moparx Offline
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north of coder
one other area to look at is the plug at the bottom of the steering column. look for signs of possible corrosion causing resistance heat to start melting the wire[s] in the start/run circuits, or pin "push out" at the connectors.
beer

Re: Electrical good, won't turn over [Re: Moparmaniacc] #2438071
01/20/18 07:11 PM
01/20/18 07:11 PM
Joined: Dec 2004
Posts: 733
Northern Virginia
Moparmaniacc Offline OP
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Moparmaniacc  Offline OP
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Northern Virginia
I just grounded the terminal on the relay and it started right up.

Now I just need to get rid of slight backfire thru the exhaust on decel...

I think the cam is a bit wiped.

Re: Electrical good, won't turn over [Re: Moparmaniacc] #2438136
01/20/18 10:21 PM
01/20/18 10:21 PM
Joined: Oct 2005
Posts: 1,646
Ringtown, Pa.
Dartsport540 Offline
top fuel
Dartsport540  Offline
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Ringtown, Pa.
Any little exhaust leak will cause a backfire on decal....


548 cu. in., Bill Mitchell Aluminum Block, CRT 727 auto trans, Alston Chassis. 8.981et at 149.46 mph. 1.204et - 60 foot, So Far....
Re: Electrical good, won't turn over [Re: Dartsport540] #2440889
01/26/18 08:08 AM
01/26/18 08:08 AM
Joined: Jul 2013
Posts: 1,272
Northern Calyfornua
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Sxrxrnr Offline
pro stock
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Posts: 1,272
Northern Calyfornua
Originally Posted By Dartsport540
Any little exhaust leak will cause a backfire on decal....


So will engine vacuum leak.







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