Ask Your Car Question. Car Experts Answer You ASAP.

(Not a Car Question?)

1965 Mustang, 289 engine It was restored 4 years ago with ...
Sent to Car Experts February 09 02:41 PM

1965 Mustang, 289 engine
It was restored 4 years ago with a new alternator and regulator.The lights flicker during idle. Sometimes the alternator light will flash on and off. A check of the new alternator and regulator indicated no problem. The ground strap between the engine and frame/body with clean connections did not help. Any suggestions?
macs2@zoominternet.net

Optional Information:
Pre-1981 Ford Mustang 289 auto

Already Tried:
everything that I can think of.

Customer (name blocked for privacy)
Status:  Closed   Value: $25
Answer
February 9 2:52 PM (10 minutes and 28 seconds later)
         
REPLIEDCheck Mark
This might sound stupid, but when you tested the alternator did you test it at the alternator or at the battery. Maybe try testing the battery.
ERIC KOHNKE -- Auto Mechanic -- 100% Positive Feedback on 38 Car Accepts
Have worked on this exact vehicle and similar issue before.
Reply
February 9 3:00 PM (8 minutes later)
         
The alternator was tested at a parts store on a tester and it was ok.
Customer (name blocked for privacy)
Reply
February 9 3:02 PM (2 minutes and 6 seconds later)
         
Reply to ERIC KOHNKE's Post: 1965 Mustang alternator was tested at a parts store on a tester and was ok.
Customer (name blocked for privacy)
Answer
February 9 3:11 PM (9 minutes and 24 seconds later)
         
THIS ANSWER IS LOCKED!
You can view this answer by clicking here to Register or Login and paying $3.
ERIC KOHNKE -- Auto Mechanic -- 100% Positive Feedback on 38 Car Accepts
Have worked on this exact vehicle and similar issue before.
Answer
February 9 3:34 PM (22 minutes and 24 seconds later)
         
THIS ANSWER IS LOCKED!
You can view this answer by clicking here to Register or Login and paying $3.
ERIC KOHNKE -- Auto Mechanic -- 100% Positive Feedback on 38 Car Accepts
Have worked on this exact vehicle and similar issue before.
Reply
February 9 4:14 PM (40 minutes and 19 seconds later)
         
The car has 5000 miles on it since restoration. The battery was new and is fully charged and the alternator keeps it fully charged. There is no problem with the operation of the car except the slight flickering lights on idle. Generally this is caused by faulty grounds, except that I cannot find any problems with the grounds.   Idling speed is slightly on the fast side. Different regulators did not help. Could it possibly be the alternator even though it tested ok on the tester at the parts store.
Customer (name blocked for privacy)
Answer
February 9 4:19 PM (5 minutes and 36 seconds later)
         
THIS ANSWER IS LOCKED!
You can view this answer by clicking here to Register or Login and paying $3.
ERIC KOHNKE -- Auto Mechanic -- 100% Positive Feedback on 38 Car Accepts
Have worked on this exact vehicle and similar issue before.
Reply
February 9 5:19 PM (1 hour later)
         
There are no shorts in the wiring and all grounds have beeen cleaned and reattached. The alternator was new from Auto Zone and they tested it. I do not know how they calibrate the tester. Thanks for your information but everything you have suggested, I have already done. I am restoring a second 1965 Mustang and it needs a new alternator. I will switch alternators in the Spring to eliminate the possibility.
Customer (name blocked for privacy)
Think you can answer this question?
Login or Become an Expert

Related Answers

 

DISCLAIMER: You acknowledge that any information you may obtain from individuals you contact through use of the Just Answer service comes from those individuals, not from Just Answer!, and that Just Answer is not in any way responsible for any of the information these third parties may supply. The site and services are provided "as is" with no warranty and no representations are made regarding the qualification of an Expert. Responses and comments on Just Answer! are for general information and are not intended to substitute for informed professional advice (such as medical, legal, investment or accounting) and do not establish a professional-client relationship. Just Answer! is not intended or designed to address EMERGENCY QUESTIONS which should be directed immediately by telephone or in-person to qualified professionals. Please carefully read the Terms of Service.

Just Answer! > Car Repair