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Old 10-17-2007, 06:49 AM
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EGT Exhaust help!

Last night I installed a 5 inch exhaust in place of the stock one. The reason why is my egts ran pretty high before. I have an edge evolution, a afe stage 2 intake and now the 5 inch exhaust. The problem I have is that my egts rise higher faster now with the new exhaust. This is the exact opposite of what is normal. My pyrometers thermocouple was not mounted anywhere on the exhaust. I have no idea where it is because I just bought the truck. It is an ISSPRO guage. Could I have a serious issue that is causing such high egts? Or could my guage be bad and the thermocouple located in an innaccurate place. My friend has a 5 inch on the exact same truck and even towing his never goes above 1000 degrees. We have the same mods so thats why I am worried about my truck. Please help if you have any insight or if you need more info
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Old 10-29-2007, 11:16 AM
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Something ain't right. With the mods you have EGT's shouldn't be a problem, especially when not towing. You didn't say what your EGT's are so I will assume we atre talking at or near the redline (caution line) of 1250 degrees. You need to follow some wires and look at the exhaust manifold and find out where the thermocoupler is located. Usually when one goes bad the readings will bounce or not read at all. The end of your thermocoupler could be to close or is touching the wall of the manifold instead of being right in the middle of the manifold. You need to start doing some detective work because with your intake and exhaust EGT's shouldn't be a problem.
Good Luck
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Old 10-29-2007, 11:22 AM
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Where are you located? City/State?
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Old 10-29-2007, 01:50 PM
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Check the the eyelet on the wastegate to be sure the clip did not fall out and it is still opening the exhaust valve
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