C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Ticking like a time bomb

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Old Sep 21, 2006 | 01:03 PM
  #1  
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Default Ticking like a time bomb

I recently did a bunch of coolant system work (new thermostat, TB bypass, coolant flush and new radiator cap) and in the process, took the opportunity to degrease and clean the intake and front end of the engine. Car runs fine, but now I suddenly have a loud ticking that sounds like it is coming from the drivers side exhaust intake / pre-cat area.
Is there an easy way to tell if I have an exhaust leak? Could the water and degreaser gotten onto the exhaust manifold gasket and screwed it up? Any ideas?
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Old Sep 21, 2006 | 01:11 PM
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If it was from the exhaust, it would generally go away or change after the pipes heat up.
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Old Sep 21, 2006 | 02:11 PM
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Any ideas what it could be then?
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Old Sep 21, 2006 | 02:42 PM
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Have you let the engine get to operating temps for a few times? I believe you can use Seafoam in the brake booster and it will show you a exhaust leak.
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Old Sep 22, 2006 | 11:41 AM
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If it's like mine, I believe I do have an exhaust manifold leak. I used Seafoam a couple of months ago and did notice some of the smoke generated coming up from the eninge area near the exhaust manifolds...mainly on the drivers side, which seems to be where a majority of the noise I have is coming from.
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Old Sep 22, 2006 | 05:47 PM
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Got under the car yesterday on the lift and sure enough......the driver's side pre-cat and the main cat are both ticking like they are going to explode. What an opportune time to get a new exhaust system from Magnaflow!!
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Old Sep 22, 2006 | 06:14 PM
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Originally Posted by Skrud13
Got under the car yesterday on the lift and sure enough......the driver's side pre-cat and the main cat are both ticking like they are going to explode. What an opportune time to get a new exhaust system from Magnaflow!!
Glad you found the problem. Sounds like a good choice.
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Old Sep 30, 2006 | 01:52 PM
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Got a full front to back Magnaflow exhaust with high flow cats the other day from www.hottexhaust.com (really great deal......cheap price, free delivery and free Magnaflow high flow main cat) and I finally had a chance to install it yesterday. Took me a full 6 hours to install, but boy does it look and sound sweet. Very clean and well fitted.
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Old Sep 30, 2006 | 02:41 PM
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So what was the total cost?
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Old Oct 1, 2006 | 01:54 AM
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Front Stainless Y Pipe with 2 Stainless Mirror Polished High Flow Cats - $283
Stainless Mirror Polished High Flow Main Cat - Free
Cat Back Stainless Y Pipe with Mirror Polished Magnaflow Mufflers - $594
Delivery - Free
Discount - $52
Install - 6 hours of my time

Total - $824
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Old Oct 2, 2006 | 01:02 AM
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How about some pics plz.?
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Old Oct 2, 2006 | 01:32 AM
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Went and got the car up on the lift for something else, and completely forgot to bring my camera. I will post them as soon as I can take some.
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