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The Terminator
Terminator Talk
2003 Cobra - New restoration/project
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<blockquote data-quote="hatchke" data-source="post: 16786838" data-attributes="member: 185172"><p><img src="https://live.staticflickr.com/65535/52159128520_cdb4f084aa_b.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>So it goes haha. Idling while waiting for HVAC guys to show up at my SO's place for 20-25min and out of nowhere heard a *pop* and rpm's started to hesitate a little and then got a whole bunch of awful cyclical screeching a second after. Sound is pretty central to the motor.</p><p></p><p>I let it go on for a min while thinking through possibilities, I notice the aftermarket temp gauge was a touch hotter than usual. It's pretty sensitive being in 10deg increments, so I got close up on it and sure enough the gauge was starting to sweep around and up slowly.</p><p></p><p>Killed the car, cranked the heat, popped the hood and let it start cooling off. I looked in at the water pump but don't see anything from the weep holes and it didn't leak any coolant anywhere that I can see. </p><p></p><p>Towed it on home since I was about 30min away and didn't want to take chances. </p><p></p><p>Started the car to get it off the wrecker and it wasn't making the sound anymore which was very confusing. Upon turning the a/c back on it immediately started making the same racket, and then continued after I turned the a/c back off. </p><p></p><p>I let it get back to operating temp and then watched the gauge start to sweep up, so just turned it all back off. </p><p></p><p>Signs point to water pump given the cooling, but if it is, it didn't really fail in a way that i'd have expected. The other confusing aspect is the noise doesn't start back up immediately when the car is cool. If I turn the a/c on, it'll trigger the noise OR if the car is at operating temp it'll make the same noise. The noise is also definitely cyclical and tied to engine speed. </p><p></p><p>I went ahead and ordered a water pump, accessory belt and tensioner. Not wildly excited about digging into it, but I don't really know how to diagnose this with 100% certainty besides what i've already done.</p></blockquote><p></p>
[QUOTE="hatchke, post: 16786838, member: 185172"] [IMG]https://live.staticflickr.com/65535/52159128520_cdb4f084aa_b.jpg[/IMG] So it goes haha. Idling while waiting for HVAC guys to show up at my SO's place for 20-25min and out of nowhere heard a *pop* and rpm's started to hesitate a little and then got a whole bunch of awful cyclical screeching a second after. Sound is pretty central to the motor. I let it go on for a min while thinking through possibilities, I notice the aftermarket temp gauge was a touch hotter than usual. It's pretty sensitive being in 10deg increments, so I got close up on it and sure enough the gauge was starting to sweep around and up slowly. Killed the car, cranked the heat, popped the hood and let it start cooling off. I looked in at the water pump but don't see anything from the weep holes and it didn't leak any coolant anywhere that I can see. Towed it on home since I was about 30min away and didn't want to take chances. Started the car to get it off the wrecker and it wasn't making the sound anymore which was very confusing. Upon turning the a/c back on it immediately started making the same racket, and then continued after I turned the a/c back off. I let it get back to operating temp and then watched the gauge start to sweep up, so just turned it all back off. Signs point to water pump given the cooling, but if it is, it didn't really fail in a way that i'd have expected. The other confusing aspect is the noise doesn't start back up immediately when the car is cool. If I turn the a/c on, it'll trigger the noise OR if the car is at operating temp it'll make the same noise. The noise is also definitely cyclical and tied to engine speed. I went ahead and ordered a water pump, accessory belt and tensioner. Not wildly excited about digging into it, but I don't really know how to diagnose this with 100% certainty besides what i've already done. [/QUOTE]
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2003 Cobra - New restoration/project
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