1980 Chevy Impala My car wont start when the motor is hot

Tiny
1980IMPALA
  • MEMBER
  • 1980 CHEVROLET IMPALA
  • V8
  • 2WD
  • AUTOMATIC
  • 200,885 MILES
My car will start cold but when I take it down the road and shut it off it does not start back up. The battery cables are hot and it acts like it is dead but then I can take the battery off and put it on another vehicle and it starts their car.I have had the alternator checked, and it was good I just replaced the battery cables and I just replaced the battery. What is the problem?
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Tuesday, August 11th, 2009 AT 8:45 AM

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Tiny
JDL
  • EXPERT
Hello, are the battery cables ok? I'd make sure all connections are clean and tight on both ends. If there are any extra grounds, like from engine to firewall, I'd check that also. Maybe a starter issue? Did you try to jump the starter solenoid? There could be safety issues, doing that, not so much with an automatic. Just make sure the tranny is in park or neutral and the e-brake is set.
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Tuesday, August 11th, 2009 AT 9:40 AM
Tiny
1980IMPALA
  • MEMBER
I just replaced my cables and they are clean and tight
i have not tried to jump the starter solenoid but as I try to start the car it gets weaker and weaker but the battery is good could this be the starter cause like I said it is a new battery
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Tuesday, August 11th, 2009 AT 2:09 PM
Tiny
JDL
  • EXPERT
Yeah, it could be the starter, can't tell without testing. With a no-load test, the starter may work fine, then go the other direction when you put a load on it. Some of the national brand autostores will check starters for free. You just have the hassle of removing the starter and taking it down there, if everything checks, you replace the starter again.

If I can't get the starter to act correctly on the vehicle, I take it off, lay it on the ground, use jumper cables for a no load test. If the starter won't do anything, I think it is the solenoid or starter.
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Tuesday, August 11th, 2009 AT 2:46 PM
Tiny
1980IMPALA
  • MEMBER
I took it to advanced auto and it was fine so I dont know what to try next
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Wednesday, August 12th, 2009 AT 8:31 AM
Tiny
JDL
  • EXPERT
The small purple wire at the starter solenoid, should be hot with the key in the crank position. Do the testing when the starter refuses to crank. When the starter refuses to crank, can you turn the crank by hand? Something doesn't add-up?
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Wednesday, August 12th, 2009 AT 10:02 AM

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