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2nd Generation
Bad Intercooler Pump :/ How Much Damage??
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<blockquote data-quote="throttle jockey" data-source="post: 14250615" data-attributes="member: 54243"><p>What part of SoCal?</p><p></p><p>The IC system operates separate of the engine coolant so you won't see any difference in your engine coolant temp even if your IC pump has crapped out. </p><p></p><p>The IC pump is triggered by the IC pump relay based off of the IAT2 temperature. The relay closes when the IAT2 temp reaches the 70s. </p><p></p><p>You need to look in the IC coolant reservoir to see if the coolant is circulating. You can either get the truck up to operating temperature and look or you can jumper the IC pump relay. If your coolant isn't circulating then you need to rebuild or replace your IC pump.</p><p></p><p>A faulty IC pump will result in high IAT2 temps which will cause detonation. Detonation is an engine killer! In order to protect against detonation our trucks' ECUs start to reduce engine timing during WOT pulls when the IAT2 temps reach 130* (roughly) and begins to pull timing more aggressively when IAT2 temps reach 150*. </p><p></p><p>Pull a few of the spark plugs and visually inspect them for signs of detonation (burnt ground straps, black specs on the porcelain). </p><p></p><p>Off-hand I don't really know what ETs a stock Lightning should put down in the 1/8th but the low-9s you made are on-par with what to expect. </p><p></p><p>Here's how to jumper the IC pump relay:</p><p></p><p>[ATTACH=full]584763[/ATTACH] </p><p></p><p>[ATTACH=full]584764[/ATTACH]</p></blockquote><p></p>
[QUOTE="throttle jockey, post: 14250615, member: 54243"] What part of SoCal? The IC system operates separate of the engine coolant so you won't see any difference in your engine coolant temp even if your IC pump has crapped out. The IC pump is triggered by the IC pump relay based off of the IAT2 temperature. The relay closes when the IAT2 temp reaches the 70s. You need to look in the IC coolant reservoir to see if the coolant is circulating. You can either get the truck up to operating temperature and look or you can jumper the IC pump relay. If your coolant isn't circulating then you need to rebuild or replace your IC pump. A faulty IC pump will result in high IAT2 temps which will cause detonation. Detonation is an engine killer! In order to protect against detonation our trucks' ECUs start to reduce engine timing during WOT pulls when the IAT2 temps reach 130* (roughly) and begins to pull timing more aggressively when IAT2 temps reach 150*. Pull a few of the spark plugs and visually inspect them for signs of detonation (burnt ground straps, black specs on the porcelain). Off-hand I don't really know what ETs a stock Lightning should put down in the 1/8th but the low-9s you made are on-par with what to expect. Here's how to jumper the IC pump relay: [ATTACH=full]584763[/ATTACH] [ATTACH=full]584764[/ATTACH] [/QUOTE]
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Bad Intercooler Pump :/ How Much Damage??
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