Low idle in gear causes gauges to drop.

[Kapdin]

So i have noticed that when my truck is warm (which is rare cus its negative out side every day) and i pull up to a stop she idels down where i like it but then my gauges drop and the lights dim, if i just barly get on the throttle they all go up, so basicaly is this normal? or should i search for a bad ground/power wire? Also prolli the main reason i don't think its right is cus then my blinkers are FUGGGIN slow, then the speed up when i give her a bit of gas. I dunno wat its ideling at but prolli around 500 in gear stopped. (new batt. new alternater)

 

[RetroC10Sport]

Sounds like you need better grounds or do "the big 3."

 

[animal]

Sounds like you need better grounds or do "the big 3."

I agree with Retro. I would probably look at the "big 3" upgrade. There's a sticky on it.

 

[crazy4offroad]

Big 3 would be the first thing I would do and if it still does it, your idle needs to come up a couple hundred rpm. If it still does it after that I would be looking at the alternator. A higher amperage alternator for vehicles equipped with more power accessories like power seats, mirrors, etc would put out more juice at lower rpm compared to your stock alternator.

 

[Kapdin]

help me out guys, i search for big 3 and come up with nothin.

 

[89Suburban]

http://www.gmsquarebody.com/forum/showthread.php?t=3840