Problems with a FI 2.0, Who would have thunk it |
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Problems with a FI 2.0, Who would have thunk it |
daktaklakpak |
Oct 21 2003, 03:09 PM
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#1
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PC Game Freak Group: Members Posts: 34 Joined: 26-February 03 From: Greenville, SC Member No.: 360 |
I haven’t gone through the FI trouble-shooting guide on pauls site yet. I'm just looking for some ideas on where to start. I recently did a valve job and changed the oil and my dad was monkeying around up top in with something he had the air filter box off. It now has a ticking noises sometimes that doesn’t go in rhythm with the engine and its has a almost exhaust leak sound to it. It seems to go away as the car warms up. It also seems to idle 500 rpms more. I've rechecked the valves and they’re all good. Checked all the hoses they seem to be all connected right and tight. The rpm's basically hit a wall when it gets to around 3500-4000 rpms. It does have a rev limiter in the distributor but that wasn't messed with or at least I don’t think it was. The main reason I'm asking about advice before going through the FI is I have a bad feeling about it may be a head gasket or intake gasket or some other super fun stuff.
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ChrisReale |
Oct 21 2003, 03:30 PM
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#2
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Sleazy Group: Members Posts: 2,665 Joined: 20-January 03 From: San Francisco Member No.: 176 |
Higher idle indicates a vacuum leak. Did you remoive the heat exchangers when you did yor valve adjust? Make sure they are not leaking, check out the AAR when the car is fully warmed up to see if it is still sucking air. It should not be. Also make sure there is no debris clattering around the fan
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Dave_Darling |
Oct 21 2003, 05:42 PM
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#3
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914 Idiot Group: Members Posts: 15,048 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
Two possibilities for higher idle--a vacuum leak of some kind (could be internal to the AAR or Decel Valve as Chris alluded), or over-advanced timing.
Leaks can occur at the seam of the plenum, at the fuel injector O-rings, at any of the vacuum hoses, at the throttle body.... Check the hoses carefully. Brittle ones are usually leaking already, and ones that are 'close to' the fitting can look OK at first glance. --DD |
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