Author Topic: lights dim on acceleration  (Read 1548 times)

Offline turpentyne

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lights dim on acceleration
« on: October 11, 2014, 08:58:00 PM »
I'm more or less, double-checking....

I just noticed this evening, when I started the truck. In neutral or gear, if I step on the gas, the headlights dim a little. It's a brand new battery, so I'm guessing the alternator or voltage regulator is going bad? Or is this maybe normal on these trucks?

Offline VileZambonie

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Re: lights dim on acceleration
« Reply #1 on: October 11, 2014, 09:02:40 PM »
Belt slipping?
,                           ___ 
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74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline Chisholmcody

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lights dim on acceleration
« Reply #2 on: October 11, 2014, 09:20:37 PM »
Yeah I agree with vile

Offline turpentyne

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Re: lights dim on acceleration
« Reply #3 on: October 11, 2014, 09:27:44 PM »
ah, ok. I'll try tightening it up a little and see if the problem goes away. Thanks