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Discussion Starter · #1 ·
Alright, there are a couple minor problems with my wife's car that I want to fix.

The first is that the check engine light is on all the dang time. I reset it and it will come back on in a few miles. It is the code for the low voltage thing. I put a new battery in (Optima red top) and it is still doing it. I don't think the alternator is bad but maybe malfunctioning, or possibly the voltage regulator. What do you guys think? The stupid light is just annoying the crap out of me. I would cover it up with tape but then if something really bad happens I would feel stupid.

Her car also makes this chirping noise at an idle. It idles at 800 RPM and if I put my foot on the gas and raise the idle to 1k then the chirp goes away. It sounds like a squirrel is trapped in the fan belt and screaming it's lungs out. I have not replaced the fan belt yet but do you think that is what it is? I figure it is either that, a loose pulley, or just a pulley that needs to be sprayed down heavily with some WD40.

I've also tossed around the idea of doing some performance upgrades. Do those short ram air intakes help with a stock exhaust? I thought about doing that and then gutting the precats up front. I don't want a fart pipe on there, I don't even want the car to make any noise at all like most ricers, but I do want some extra power if it is readily available. Some cars have a lot of untapped power and others are already maxed out. What is it in this case with a 99 Cougar with the "big" V6? It's a 5 speed so it already moves pretty good. Thanks for your help.
 
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Discussion Starter · #2 ·
Well the low voltage thing may be coming from a bad spark plug but im clueless to whatever else it is. The chirping sound could be the water pulley belt, a belt of the pulley a little bit, a bad spot in the belt or in my case i have a 95 Thunderbird with a custom exhaust and it does the noise you are talking about. Mine has a loose exhaust pipe hitting somethin under the car. It's not too loud but its kinda annoying if you really listen to it. I gave you soem ideas but I'm not for sure, anyways it's better than nothing.
 

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Did you pull the low voltage from using the self diagnostics or having someone read it with an OBDII scanner at Autozone. The self diagnostics code for that is pretty useless for the most part.
 

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I have a stock 02 C2 with a short ram and gutted precats and you do get that
extra power but you don't get that noise of a rice car :rofl:
 
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Discussion Starter · #6 ·
Cool, thanks for the tips guys. I'll look at it and see, I figured changing the belt might work but wanted to ask first. I pulled the low voltage from the self diagnostic. Should I get an OBD2 scan instead?
 
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