71 Roadrunner not starting
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- Satellite Coupe (RL)
- Posts: 14
- Joined: Fri Feb 03, 2012 7:00 pm
- My Cars: 1972 Plymouth Roadrunner 4spd, 400 block all matching numbers. Project Car!!
71 Roadrunner not starting
Hey guys,
I recently imported a 71 roadrunner. We put a brand new battery into it and when we turned the key no dash lights come on and the car won't turn over. When I turn the key the aftermarket tacho flicks up and down slightly and the horn works but the indicators etc don't. The posts are clean and the + cable to the starter motor is on pretty tightly. Also there is no traditional "clunk" of the solenoid trying to engage the starter. What else could be the problem?
Cheers
Ash
I recently imported a 71 roadrunner. We put a brand new battery into it and when we turned the key no dash lights come on and the car won't turn over. When I turn the key the aftermarket tacho flicks up and down slightly and the horn works but the indicators etc don't. The posts are clean and the + cable to the starter motor is on pretty tightly. Also there is no traditional "clunk" of the solenoid trying to engage the starter. What else could be the problem?
Cheers
Ash
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- GTX (RS)
- Posts: 394
- Joined: Sat Feb 12, 2011 12:28 am
- My Cars: 71 roadrunner
- Location: lethbridge, ab
Re: 71 Roadrunner not starting
bad ground. was the biggest of my troubles, casued all kinds of grief.
400 stroked to 470ci, 3:55 Eaton true trac, slightly upgraded suspension lol
BUILD THREAD!!!! http://www.protouringmopar.com/showthread.php?796-1971-Speedipus-Rex&highlight=speedipus
BUILD THREAD!!!! http://www.protouringmopar.com/showthread.php?796-1971-Speedipus-Rex&highlight=speedipus
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- Road Runner (RM)
- Posts: 39
- Joined: Thu Oct 15, 2009 11:40 am
- My Cars: 71 Roadrunner
67 Charger
Re: 71 Roadrunner not starting
Try taking a screw driver and jumping the solenoid. Turn your key to the on position, then Remove the little wire that is snapped on the solenoid and jump from that post the the starter wire post and see if it turns over. My car used to do that till I changed the solenoid. It was 20 yrs ago so I carried a screw driver for about 3 months till i could afford to fix it... 

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- Satellite Coupe (RL)
- Posts: 14
- Joined: Fri Feb 03, 2012 7:00 pm
- My Cars: 1972 Plymouth Roadrunner 4spd, 400 block all matching numbers. Project Car!!
Re: 71 Roadrunner not starting
Oh cool, I will try that! The earth cables coming off the negative terminals were on satisfactorily on the frame and engine quite well. The thing is the car was running fine before it got on the ship in LA and when it came here (was on the ship for a good 2 months) it didn't want to start!
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- Satellite Sebring Plus (RP)
- Posts: 75
- Joined: Tue Mar 27, 2012 10:57 pm
- My Cars: 1971 440 GTX Tor Red getting TLC in my home shop...
1972 Satellite parts car
Could Kick myself for selling my 71 Butterscotch W/Black Gator top
383 Roadrunner back in the late 70's - Location: LA...... Thats Lower Alabama
- Contact:
Re: 71 Roadrunner not starting
Isn't there a Fusable Link on 1971 Road runners?
If River Boats were a dime a dozen............
All I could do is run up and down the bank hollering "Ain't that cheap."
All I could do is run up and down the bank hollering "Ain't that cheap."
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- Satellite Coupe (RL)
- Posts: 14
- Joined: Fri Feb 03, 2012 7:00 pm
- My Cars: 1972 Plymouth Roadrunner 4spd, 400 block all matching numbers. Project Car!!
Re: 71 Roadrunner not starting
Im not too sure, someone told me to check that but I wasn't too sure if they had one or where to find it!
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- Satellite Sebring Plus (RP)
- Posts: 83
- Joined: Wed Apr 25, 2007 9:43 pm
- Location: Slidell, LA
Re: 71 Roadrunner not starting
A 71 RR does have a fusible link. It is found connected to the large stud on the starter relay and the other end is connected to a fairly large red wire via black connector. Check the fusible link wire where it enters the two connectors. See pic below.
Ron
Ron
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- Fusible Link 1.jpg (245.8 KiB) Viewed 13834 times
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- GTX (RS)
- Posts: 394
- Joined: Sat Feb 12, 2011 12:28 am
- My Cars: 71 roadrunner
- Location: lethbridge, ab
Re: 71 Roadrunner not starting
this was another one o my issues before as well! you can try this one - cheap fixRonnman wrote:A 71 RR does have a fusible link. It is found connected to the large stud on the starter relay and the other end is connected to a fairly large red wire via black connector. Check the fusible link wire where it enters the two connectors. See pic below.
Ron
400 stroked to 470ci, 3:55 Eaton true trac, slightly upgraded suspension lol
BUILD THREAD!!!! http://www.protouringmopar.com/showthread.php?796-1971-Speedipus-Rex&highlight=speedipus
BUILD THREAD!!!! http://www.protouringmopar.com/showthread.php?796-1971-Speedipus-Rex&highlight=speedipus
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- Satellite Coupe (RL)
- Posts: 14
- Joined: Fri Feb 03, 2012 7:00 pm
- My Cars: 1972 Plymouth Roadrunner 4spd, 400 block all matching numbers. Project Car!!
Re: 71 Roadrunner not starting
Cheers Ron
She's gone away to get panel and paint done so I don't have a chance to look at it. However I will point this out to the panelbeater!
She's gone away to get panel and paint done so I don't have a chance to look at it. However I will point this out to the panelbeater!
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- GTX (RS)
- Posts: 147
- Joined: Fri Mar 11, 2011 11:14 am
- My Cars: 1972 Road Runner originally equipped as lemon twist,400,4spd,air grabber,performance axle pkg.,bk. interior.
- Location: North Carolina
Re: 71 Roadrunner not starting
When you see the car again, especially after any painting.
Check and make sure you still have a ground wire from the negative(earth) battery terminal to the radiator support. If not, then add one. If still there, remove the terminal at the radiator, clean and reinstall.
I had this problem when trying to get my newly purchased '72 started. After I added this wire, EVERYTHING worked properly. The last inspection sticker on the glass was 1983!
Good luck!
Check and make sure you still have a ground wire from the negative(earth) battery terminal to the radiator support. If not, then add one. If still there, remove the terminal at the radiator, clean and reinstall.
I had this problem when trying to get my newly purchased '72 started. After I added this wire, EVERYTHING worked properly. The last inspection sticker on the glass was 1983!
Good luck!
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- GTX (RS)
- Posts: 104
- Joined: Sat Sep 22, 2012 10:56 pm
- My Cars: 1971 Roadrunner.
- Location: Long Beach, CA
Re: 71 Roadrunner not starting
You didn't say if it is automatic or manual. If it is a manual, the clutch needs to be depressed in order for it to turn over. Also, if the switch is bad on the clutch, it can be bypassed by cutting the wire from the starter solenoid to the clutch and grounding it to the frame. You just need to make sure that the car is not in gear while turning the key. I did this with my 71 rr and it works just fine.
P.S. my car is a non numbers matching driver and I don't mind the slight modification. Otherwise you may need to check and/or replace the clutch switch.
P.S. my car is a non numbers matching driver and I don't mind the slight modification. Otherwise you may need to check and/or replace the clutch switch.
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- GTX (RS)
- Posts: 394
- Joined: Sat Feb 12, 2011 12:28 am
- My Cars: 71 roadrunner
- Location: lethbridge, ab
Re: 71 Roadrunner not starting
grounds. seems to be all 99% of my wiring problems.
400 stroked to 470ci, 3:55 Eaton true trac, slightly upgraded suspension lol
BUILD THREAD!!!! http://www.protouringmopar.com/showthread.php?796-1971-Speedipus-Rex&highlight=speedipus
BUILD THREAD!!!! http://www.protouringmopar.com/showthread.php?796-1971-Speedipus-Rex&highlight=speedipus