My 2000 Cougar 6 cyl. started making a rattling noise that is only evident while idling. It also makes a random humming noise sometimes within a few minutes of starting the engine. Today, after a few days of this, the battery light on the dash came on and stayed on. It starts up easily and seems to run just fine - any ideas?
It may be the alternator bearing/bushing that is making the noise and may lead to alternator breakdown. This will result in battery not charging and the light on the dash coming on. You need to confirm this.
SOURCE: 1999 mercury cougar wont start
clicking usually sounds like a starter sometiimes when they start going bad it gets stuck that's why u only hear clicking, try tapping it with a steel bar or something it worked for me wen my car was doing that, and what u mentioned about the battery it might be that is not holding charge even if u try jump starting it
SOURCE: my 2000 Mercury Cougar starts ok then after a few
I have the same car. Same problem. We replaced the fuse box and it fixed the problem. But here we are 6 months later and the problem came back. So for a quick fix you can replace the fuse box. I'll let you know what the real problem is when i get it to the dealer.
SOURCE: battery light stays on
Your alternator isn't putting 14 volts out to the battery. Check the stator wire on the alternator and the 3 wire plug make sure there is no gap on any of the alternator connectors and they are on VERY firm!
Hook up a multimeter inside your car and watch the battery voltage! if under 14volt you got an alternator problem!
SOURCE: my 1999 mercury cougar (2.5 V6 stick shift) when
Sounds like throw out bearing, but see if other experts agree before pulling the tranny. This is a big repair job.
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