Hard starting with headlights on?

[MrSony]

Yep. Starts fine with em off. Leave em on (such as in a drive thru) and if I shut the car off it lags bad and almost wont turn over sometimes. Turn the lights off it pops right off. I know I need new headlights, one has water in it, 2 are original. Could that be the issue?

 

[pagrunt]

How old is the battery will be my first question, next have you check the grounds & battery cables?

 

[MrSony]

Battery is a year old. All grounds are clean and accounted for. Negative cable is new, positive is not.

 

[MrSony]

I know for a fact the positive cable is structurally sound, it's just old. I've been meaning to replace it but I want to keep it side post and aftermarket side post cables fit like sh*t at the battery. Bolts too short, rubber too thick, etc.

 

[565bbchevy]

I have seen factory cables that appear to be "structurally sound" but end up being all corroded on the inside, I am betting a new positive cable will fix the issue but still replace your fishbowl headlights.

 

[pontiacgp]

Is the alternator working on all phases and charging the battery properly.....

 

[TURNA]

Dont start it with the lights on

no more problem

 

[fleming442]

....kinda

 

[pontiacgp]

maybe the 7 blade fan is causing too much drag......

 

[TURNA]

If he puts a worm gear on the 7 blade maybe he can turn his regal into a helicopter!