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post #5 of (permalink) Old 05-19-2017, 03:25 PM
No, Mr. Lemmywinks, No!!!

Grog6's Avatar
Join Date: Jun 2005
Location: Harriman, TN
Age: 54
Posts: 8,291
Check the connections at the megafuse, below the outside fusebox; that's a common spot for problems.

Checking the voltage at the fusebox and tracing back while the blinker is making the voltage vary makes it easy to troubleshoot; when the voltage stops varying, the problem is between the last two points.

If it varies more than a volt at the battery itself, even with the engine off, your battery is wasted, or barely charged.

Charge the battery and check again; that's a sure sign of a cell that's slowly dying.

If charging the battery fixes the variation, the alternator isn't charging enough, and needs rebuilt; I've used "Victory Lap" kits from amazon with no issues. ~$20.

You may end up replacing the battery too, if the Alt has been undercharging for a long time.

Red '96 Cougar XR-7 240k mi. '02 4R70W, PST DS : '03 PI engine, 04 maf, 24lb injectors, 2.5" exhaust, '02 4r70w + Jmod, DirtyD0g TC + cooler + 3/8" lines, 255 walbro fp. Alpine system.
Black '96 Cougar XR-7 (Lazarus) 210k mi PI Intake, '02 4R70W, Jmod, PST DS, GrogTune, Konis, Mark LCA+Poly, racecougar Custom Engine Chain, and JL and racecougar Bracing.
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