One thing led to another...
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One thing led to another...
My 99 C2 144K miles has been getting progressively harder and harder to start - the starter just barely turns over. The battery is only about a year old so I thought I'd replace the starter motor.
Then... I read that the battery-starter-alternator cable could also cause this symptom, so I figured that I'd replace it at the same time.
Then... I read it the engine to body grounding cable could also cause this symptom, so I figured that I'd also replace this.
Parts arrive and I dig into the job - remove air box, remove throttle body, remove intake T, remove serpentine belt, remove alternator.
Then... I notice that the throttle body needs cleaning, so off comes the idle control valve and the entire assy gets a good cleaning.
Then... I notice that one of the throttle body T intake boots is split. So I order replacements for both sides.
Then... I notice that the alternator bearings are making noise. Not really bad but definitely not good. So I order a new alternator.
Then.. I notice that the idle pulleys and the tensioner pulley bearings are also making noise. Order all of those.
Then... I notice that the serpentine belt is looking worn. Order it.
Then... I break the hard plastic vacuum line that controls the resonance flapper on the intake. Oops.
Lots more parts arrive and I re-installed the following;
Whew! What began as a hard to start problem and an expected $400 repair turned into an entire engine accessory overhaul for $1340 in parts! Glad that I can DIY this stuff or it would have cost me a small fortune.
Here is a video (just listen to the sound) of the bad vs new alternator bearings;
Here is a pic of the dirty throttle body;
Here is a pic of the split intake boot;
My work area;
Then... I read that the battery-starter-alternator cable could also cause this symptom, so I figured that I'd replace it at the same time.
Then... I read it the engine to body grounding cable could also cause this symptom, so I figured that I'd also replace this.
Parts arrive and I dig into the job - remove air box, remove throttle body, remove intake T, remove serpentine belt, remove alternator.
Then... I notice that the throttle body needs cleaning, so off comes the idle control valve and the entire assy gets a good cleaning.
Then... I notice that one of the throttle body T intake boots is split. So I order replacements for both sides.
Then... I notice that the alternator bearings are making noise. Not really bad but definitely not good. So I order a new alternator.
Then.. I notice that the idle pulleys and the tensioner pulley bearings are also making noise. Order all of those.
Then... I notice that the serpentine belt is looking worn. Order it.
Then... I break the hard plastic vacuum line that controls the resonance flapper on the intake. Oops.
Lots more parts arrive and I re-installed the following;
- New starter
- New battery-starter-alternator cable
- New engine to body grounding cable
- New vacuum line
- New alternator
- New idler pulley's
- New tensioner pulley
- New belt
- Cleaned throttle body
- New throttle body intake boots
- New throttle body
Whew! What began as a hard to start problem and an expected $400 repair turned into an entire engine accessory overhaul for $1340 in parts! Glad that I can DIY this stuff or it would have cost me a small fortune.
Here is a video (just listen to the sound) of the bad vs new alternator bearings;
Here is a pic of the dirty throttle body;
Here is a pic of the split intake boot;
My work area;
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The tensioner and pulleys sounded a lot like the alternator. I could hear/feel the bearing noise when the belt was removed but could not hear them (yet) over the normal noise level from the engine (which is why I hadn't thought that they would need replacement).
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