Drop in power?

1334 Views 13 Replies 7 Participants Last post by benzivr6, Nov 29, 2001

benzivr6

Discussion Starter · Nov 24, 2001

Any help will be greatly appreciated

Whenever the car is on and something electrical turns on like the fan or the lights or the radio a large drop in power happens? My alternator is good battery is a brand new optima and the wiring harness is also in good condition as well including the starter wires any suggestions on what I should check? Thanks

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benzivr6

Discussion Starter · #2 · Nov 25, 2001

Re: Drop in power? (benzivr6)

TTT

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vr6willeatyou

· #3 · Nov 25, 2001

Re: Drop in power? (benzivr6)

Mine does it too. Just close your eyes when you turn something on and it goes away

"BUMP"

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jcorallo

· #4 · Nov 25, 2001

Re: Drop in power? (benzivr6)

large drop in power? you mean from the engine?

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benzivr6

Discussion Starter · #5 · Nov 25, 2001

Re: Drop in power? (jcorallo)

Yes from the engine! A large chuck about 400 rpms would just bump the power down from the engine? Thanks for helping guys

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benzivr6

Discussion Starter · #6 · Nov 26, 2001

Re: Drop in power? (benzivr6)

BUMP

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Wade2Fast

· #7 · Nov 26, 2001

Re: Drop in power? (benzivr6)

my lights dim every time i use my automatic windows

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benzivr6

Discussion Starter · #8 · Nov 27, 2001

Re: Drop in power? (Wade2Fast)

My car also does that as well

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Golfather

· #9 · Nov 27, 2001

Re: Drop in power? (benzivr6)

Check your earth leads/straps from the battery to the chassis and gearbox. Make sure they are healthy.
Also pull the fusebox out slightly and make sure the earth cables (brown) are all good.
Anything electrical is always down to a bad earth.

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Shere Khan

· #10 · Nov 27, 2001

Re: Drop in power? (Golfather)

This is the high speed fan correct?
If so you will feel the power kick, is you
low speed fan working?

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benzivr6

Discussion Starter · #11 · Nov 27, 2001

Re: Drop in power? (Shier Khan)

Yep only my high speed works but I still feel the power kick down to other electrical assesories?

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rogergti

· #12 · Nov 27, 2001

Re: Drop in power? (benzivr6)

NOT SURE WHAT YEAR YOU HAVE OR YOUR MILEAGE , BUT, YOU MIGHT WANT TO CHECK OUT YOUR ALTERNATOR OUTPUT UNDER LOAD. SOUNDS LIKE YOUR ALTERNATOR OR VOLTAGE REGULATOR ( WHICH IS INTERNAL ON THE VR6 ) IS GOING BAD. YOU SHOULD ALSO CHECK THAT YOU HAVE THE 120 AMP ALTERNATOR AS OPPOSED TO THE 90AMP WHICH IS USELESS ON THAT CAR. THE REASON THAT STUFF HAPPENS WHEN YOU ACTIVATE ELECTRICAL ACCESORIES IS THAT ALL THE COMPONENTS WILL POWER SPIKE WHEN YOU FIRST TURN THEM ON IN THE VW'S, AND, IF YOUR ALT.OR REGULATOR IS GOING BAD IT'S NOT PUTTING OUT ENOUGHT POWER TO FIRE THE COIL WHEN YOU HAVE OTHER THINGS DRAINING THE AVAILABLE POWER SUPPLY. I'VE SEEN THIS CURED BY INSTALLING COMPETITION STEREO SYTLE ALTERNATORS WHICH YOU CAN GET IN 150 AMP. NO PROBS THERE.

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