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Author Topic:   Lights flickering
Mach'ed Again
Journeyman

Posts: 47
From: Kinsley, Kansas, USA
Registered: Dec 2001

posted 10-09-2002 04:39 PM     Click Here to See the Profile for Mach'ed Again   Click Here to Email Mach'ed Again     Edit/Delete Message   Reply w/Quote
Before I start buying parts, has anybody ever had all lights( int & ext) go brite-dim-brite-dim in a pretty quick rhythm and faster with rpms ? Belt is tight, alt. or volt. reg. ?

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'69 Mach I 351W FMX
'67 Cpe 302

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johnmustang
Gearhead

Posts: 4504
From: Vancouver Island , British Columbia , Canada
Registered: Nov 2001

posted 10-09-2002 04:44 PM     Click Here to See the Profile for johnmustang   Click Here to Email johnmustang     Edit/Delete Message   Reply w/Quote
Battery , altenator , voltage regulator , wiring harness , short in the system.

JOHN

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65 2+2 FASTBACK
68 COUPE
87 TAURUS WAGON
98 F150 XLT TRITON V8 4.6, 4 WHEEL DRIVE
Member:Vancouver Island Mustang Association
M&M #1710
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ewokeric
Gearhead

Posts: 174
From: woodbridge, va united states
Registered: Mar 2002

posted 10-09-2002 05:07 PM     Click Here to See the Profile for ewokeric   Click Here to Email ewokeric     Edit/Delete Message   Reply w/Quote
i think i would start checking for tight and good connections. Espacially grounds. Does it do it at an idle as well. Check the battery voltage to see if alt or reg is working. But the flickering would seem to be a lose connection i would think
You should have 14.5 volts at battery if reg and alt is working.

Hope that helps
eric

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68 mustang coupe(california special)not real though but looks it(will be nice) 351w/c4
My 68 Coupe
[url=http://mustangsamdmore.50megs.com/ewokeric.html]

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Mach'ed Again
Journeyman

Posts: 47
From: Kinsley, Kansas, USA
Registered: Dec 2001

posted 10-09-2002 06:32 PM     Click Here to See the Profile for Mach'ed Again   Click Here to Email Mach'ed Again     Edit/Delete Message   Reply w/Quote
Batt is new 8 mos. Volt meter shows 14.2 at idle. It doesn't really "flicker" it's a constant some-what fast brite-dim-brite-dim, and gets faster as rpms increase. It's been 2 weeks - daily driver, batt still fires strong in morn.
The strobe effect is drivin' me nuts.

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V8 Thumper
Gearhead

Posts: 3529
From: Orange, Ca. United States of America
Registered: Dec 2001

posted 10-09-2002 06:42 PM     Click Here to See the Profile for V8 Thumper   Click Here to Email V8 Thumper     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by ewokeric:
i think i would start checking for tight and good connections. Espacially grounds.



Amen. It may not solve the problem 100%, but it's quick, easy, and free

A tired regulator can make stuff act funny also.

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mustangzrule
Journeyman

Posts: 87
From: Orion, MI
Registered: Sep 2002

posted 10-10-2002 11:00 AM     Click Here to See the Profile for mustangzrule   Click Here to Email mustangzrule     Edit/Delete Message   Reply w/Quote
I have been running for about 6 months now without the "S" post on my alternator connected and have the same strobe thing. The "S" is for stator, but I am not sure what the heck it's for.

I suspect a wire on the alt or the volt reg. Yousaid all connections tight including belt, right? Look for a broken wire, corroded connector and start with the "S" post and work back to the VR.

If nothing visibly wrong, replace the VR, it probably only $15 for a new one.

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Pierre
Gearhead

Posts: 366
From: France
Registered: Apr 2002

posted 10-10-2002 12:04 PM     Click Here to See the Profile for Pierre   Click Here to Email Pierre     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by Mach'ed Again:
Batt is new 8 mos. Volt meter shows 14.2 at idle. It doesn't really "flicker" it's a constant some-what fast brite-dim-brite-dim, and gets faster as rpms increase. It's been 2 weeks - daily driver, batt still fires strong in morn.
The strobe effect is drivin' me nuts.

If your problem is very regular in its blinking cycle, I would look at the blinker relay (the thing that makes blinkers flash)also.

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mustang68mustangs
Gearhead

Posts: 289
From: pittsburgh,pa.usa
Registered: Jul 2001

posted 10-10-2002 06:14 PM     Click Here to See the Profile for mustang68mustangs   Click Here to Email mustang68mustangs     Edit/Delete Message   Reply w/Quote
Could be the Headlight switch going bad.

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RonnieT
Gearhead

Posts: 637
From: Port Allen, La. 70767
Registered: Jun 99

posted 10-10-2002 10:01 PM     Click Here to See the Profile for RonnieT   Click Here to Email RonnieT     Edit/Delete Message   Reply w/Quote
This is a common problem in the older cars. It is caused by the older points type voltage regulator cycling to keep the battery charged. You can fix the problem by replacing the voltage regulator with a newer electronic regulator. You can even get these now that look exactly like the original stye regulator.

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Ronnie
69 mach1 351W-4V engineless at the time!
70 Torino GT 351C-4v with a "shaker"
Mustangs and More Member #23

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Mach'ed Again
Journeyman

Posts: 47
From: Kinsley, Kansas, USA
Registered: Dec 2001

posted 10-11-2002 06:55 AM     Click Here to See the Profile for Mach'ed Again   Click Here to Email Mach'ed Again     Edit/Delete Message   Reply w/Quote
Thanks guys for all the helpfull input. It's time to get a little dirty

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'69 Mach I 351W FMX
'67 Cpe 302

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SteveLaRiviere
Administrator

Posts: 33988
From: Saco, Maine
Registered: May 99

posted 10-11-2002 09:43 PM     Click Here to See the Profile for SteveLaRiviere   Click Here to Email SteveLaRiviere     Edit/Delete Message   Reply w/Quote
Change the voltage regulator to the solid state type. The old points type regulators were famous for this.

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'70 Mustang Mach 1 - '72 Mustang Sprint - '94 F-150

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DidgeyTrucker
Gearhead

Posts: 1060
From: Greenbrier, TN USA
Registered: Oct 99

posted 10-13-2002 03:25 PM     Click Here to See the Profile for DidgeyTrucker   Click Here to Email DidgeyTrucker     Edit/Delete Message   Reply w/Quote
I agree with the points type regulator comments. I have a '66 F-100 experienced the flickering after putting in a "correct" points type regulator. The tall cases are points type. The solid state types are only about one inch tall if the guy behind the counter has no clue if he's selling you a solid state or points type regulator.

Tracy

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