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timing issue?

 
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Old 08-04-2007, 11:01 PM
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timing issue?

I have a riddle i need some help with.

My CEL has been on and off last few days. (haven't had a chance to have it read yet.)

i noticed just before it comes on, my car will bog down and the exhaust note will change.

the exhaust note goes from throaty to whistley. it doesn't bog down bad, just enough to notice.


tell me if i'm way off because i'm totally pulling this out of my ass, but it seems like i'm having an intermitant timing problem, as if i have adjustable cam gears that slip every once and a while. i think i can pull off a cover to get a glimpse of my cam gears w/o too much trouble. (but it's 11 at night and i don't feel like it)

am i way off here? you guys have any other thoughts?

H22 (120k, intake, exhaust, thats it as far as i know)
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Old 08-04-2007, 11:08 PM
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Doesn't sound like a timing issue... a whistling sound that comes and goes... i think if it was timing, it wouldn't just "fix" itself, you know what I mean? Like if your cam gear slipped, it wouldn't resume normal operation again next time you start the car. I would definitely get the code read though... also, if you have 120k on the motor, and have never had the timing belt changed... you should do that ASAP. Is the whistling coming from under the hood? If so it could be some kind of vacuum leak.
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Old 08-04-2007, 11:15 PM
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no theres no actually whistle, it's just the sound of the exhaust, it just looses it's throatyness, and ive only had the car for a year, so i'm assuming the timing belt was changed.

does the plastic cover on the side of the morot come off as easily as it looks?
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Old 08-05-2007, 12:01 AM
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It's a little harder than it looks... You have to take your valve cover off to get to your timing belt, but I really don't think that is your problem. If you do want to get to your timing belt, download the Helms manual... it's a sticky under the 5th gen forum. Download it... it is your best friend. If you don't know whether your timing belt has been replaced or not, you should definitely inspect it. Make sure you refer to the helms manual, it will tell you what to look for in a worn timing belt. If your timing belt snaps while you are driving your car, you can say goodbye to your engine... or at the very least you're gonna bend valves.

Again, I really don't think it is your timing tho... because you said your CEL and the problem comes and goes. If it was your timing belt/gears, once it slipped out of spec, it wouldn't resume normal driving conditions until you physically fixed the problem.

Definitely download the manual and inspect your timing belt for wear... that is a MUST. And you should definitely go and get your codes read at autozone. You can check them yourself by jumping the diagnostic harness. (I assume you have a 5th gen, it's in the passenger side, on the side of the center console. There is a piece of "carpet" that is kind of a hidden "door". Open it up, and you'll see a blue wiring harness, unplug it from where it is, and jump the 2 pins together with a piece of wire or a paper clip. Then you turn your key to the "on" position, don't start your engine, just turn the key to on, and your codes will blink through the CEL. Long blinks indicate the "10s" position, and short blinks indicate the "ones" position. I.E. if your CEL blinks 3 long blinks, and then 2 short blinks, the code would be 32). But remember, if you check your codes like that, you won't get all of the specific OBD-II codes that you can retrieve with a code puller like they have at Autozone. You'll only get standard codes. Again, this procedure is outlined in the Helms manual.

5th gen online manual
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