[kekai]

ʻ93 Pickup V6 5SPD 4WD
I put in an L5 sub and a kenwood amp.
for some reason the truck wouldnt start after about two weeks.
When i disconnected the amp the truck started again.
i checked the battery and its fine. any ideas?

 

[HEAVY_GD]

Did you do a load test on the battery? and is the amp running on a remote wire from the radio? if so does the truck start with the radio off?

 

[kamesama980]

Can you clarify some stuff about the truck not starting (there are various degrees of not starting)
did the starter click?
did the starter spin?
did the starter spin the engine (cranks OK)?
did the starter spin the engine (struggles to crank/cranks slow)?
did the engine just spin or did it chug and try to start?

I would suspect a slow drain on the battery through the amp, when you had it connected the amp drain+starter drain was enough to keep the engine from starting.

for now you might want to get a trickle charger. remember that if you discharge a regular auto battery too low or too many times it deteriorates rapidly.

 

[Ajones1165]

Did you run the remote wire straight to the battery? thats what it sounds like to me.

 

[kekai]

the amp is running to a remote on the deck.
the lights and everything works and the starter spins
but doesnt "turn over" and start.

 

[Jayota]

So as soon as you disconnect the amp your trucks starts?

I'd check your wiring/connections and test your battery amperage.