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SportTrac Discussion
Engine & Drivetrain
Update on Supercharged Trac
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<blockquote data-quote="scott r" data-source="post: 564373" data-attributes="member: 62870"><p>I don't think it's a vacuum leak anymore. I looked over all the hoses, none appeared to be damaged and my vacuum/boost gauge wasn't fluctuating like a normal vacuum leak would. I was going from about 18-20 at 1000 rpm, but at idle (675 rpm), it was rock solid at 20. It almost sounds like little mini backfires coming out the tailpipe. The idle is VERY rough. It sounds like somebody is tapping on my air intake (on the plastic part) several times per second, but not in any rhythm or pattern. It's sounded like that for a long time, but before, it was maybe once per minute. Now it's very frequently. The little mini backfires increase as I rev the engine up to 1000, 1500, 2000, 2500, etc.</p><p></p><p>Got any ideas what it could be?</p><p></p><p>The engine isn't throwing any trouble codes, no check engine light and it feels to be getting decent power as long as the RPMs are over 2500 or so (which is where the boost takes over).</p><p></p><p>This goofy truck is getting more troublesome every single day.</p></blockquote><p></p>
[QUOTE="scott r, post: 564373, member: 62870"] I don't think it's a vacuum leak anymore. I looked over all the hoses, none appeared to be damaged and my vacuum/boost gauge wasn't fluctuating like a normal vacuum leak would. I was going from about 18-20 at 1000 rpm, but at idle (675 rpm), it was rock solid at 20. It almost sounds like little mini backfires coming out the tailpipe. The idle is VERY rough. It sounds like somebody is tapping on my air intake (on the plastic part) several times per second, but not in any rhythm or pattern. It's sounded like that for a long time, but before, it was maybe once per minute. Now it's very frequently. The little mini backfires increase as I rev the engine up to 1000, 1500, 2000, 2500, etc. Got any ideas what it could be? The engine isn't throwing any trouble codes, no check engine light and it feels to be getting decent power as long as the RPMs are over 2500 or so (which is where the boost takes over). This goofy truck is getting more troublesome every single day. [/QUOTE]
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SportTrac Discussion
Engine & Drivetrain
Update on Supercharged Trac
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