I just got UR Pulley's and I'm having them go on this weekend. My 03 CL-S is currently at 100k miles. I'm having the timing belt done and the UR Pulley's done at the same time. Should I also replace the alternator to save on labor, and have a fresh alternator?

 

Only if you need it. Check the voltage on your battery with the car off. It should be around 13 volts. Check it with the car on. It should go slightly over 14 volts. And then check it with the headlights on, A/C etc and ask the shop for what voltage should be at that point, probably 13.6-13.8. If all that checks out your alternator is fine.

 

If it's not broke & not making any noises I'd leave it. Replacing an alt is not very hard if you had it done at a later time.

 

my voltage drops at idle from about 13.6 down to 13.1 some times, its really weird, than it would continue fluctating, stabalize later, than might not have the problem again, its been going on for a while, could this be the alternator?

 

no one has any input? im really at a loss now and dont know where to start, sorry for the threadhijacking

 

13.6 to 13.1 is nothing to worry about. If it was dropping to 10 then I'd worry.

 

its dropped to 11 something before and it feels like the car is about to die, should i be worried now than?

 

The voltage is likely dropping because the engine speed is going down-the alternater is spinning slower. The voltage drop will not cause the engine to die unless you have no battery at all and the ignition is running from the alternator.

 

awrite man thanks for the input, so theres basically nothing i can do? it's not normal but i guess if my car wont stall i shouldnt worry about.

 

Don't worry about it, leave it alone.