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FIXED!! : Rough Idle getting rougher...found Coolant LEAK

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Old 06-18-2006, 12:54 AM
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Sorry to hear about your intake problem. In your first post you mentioned that your pcv valve was changed. When i changed mine the cap some how loosened up and started to leak, i was mistified. I retorqued the bolts with the engine running and my idle inistantly smoothed out, hope that might help you out.
Old 06-18-2006, 01:16 AM
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Originally Posted by San Juan Cruiser
Sorry to hear about your intake problem. In your first post you mentioned that your pcv valve was changed. When i changed mine the cap some how loosened up and started to leak, i was mistified. I retorqued the bolts with the engine running and my idle inistantly smoothed out, hope that might help you out.
Okay....what you've just said has me puzzled. what bolts did you retorque? I had my son show me where the pcv valve was today...he unclipped the wires and popped off the cap, showing me the spring, gasket, etc. There were no bolts involved.... ???
Old 06-18-2006, 01:20 AM
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tracy, there are 2 bolts that hold down that plate that covers the PCV valve...thats what he is talking about, it would be a vacuum leak
Old 06-18-2006, 01:24 AM
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sorry should have been more clear. from what you describe the l36 must be a little different than mine and Haros l67'*. It still might be woth checking the seal anyways.
Old 06-18-2006, 04:58 AM
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Has Dr. B made a house call yet?
Old 06-18-2006, 01:54 PM
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Haro and San Juan.....here'* a pic of where my pcv valve is...or at least what Ditchboy showed me was... there are two bolts at the bottom - is this what you were talking about? I'm also wondering, since I've got an external coolant leak, could there be a slight internal leak, not large enough to be visible in the oil cap/stick, but enough to make it run as she does...it'* a subtle roughness when cool...gets worse as she warms up..

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At any rate, I've consulted with Dr. Boost - he'* 6 1/2 hours away so a house call would take some planning... I've opted to get a ride to work for the next week or two and try to not drive her if I don't have to. It'* like having a bomb with a lit fuse...only I don't know how long the fuse is or when it will blow.
Old 06-18-2006, 06:44 PM
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PCV housed under the MAP sensor, Ditchboy is correct. The two bolts are hold down for the UIM. Because you have an external leak does not necessarily mean that there is an internal leak.
Old 06-21-2006, 12:52 PM
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Tracy:
Sorry to read about this problem. Any progress?
Old 06-21-2006, 02:28 PM
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Originally Posted by jr's3800
Tracy, at this point I would reccomend just going in and replacing the lower gaskets and the upper intake just for piece of mind...

Using the upgaded alluminum lower gaskets, a new upper intake and new elbow... Hopefully that will give you 5 years of trouble free driving..
Yes, thank you. That'* the game plan - it was running so rough once it got warm that I haven't even been driving it this week (hitching rides to work). Some people here say, "drive it...it can't hurt anything its an external leak...drive it." But I'n not sure...my 6th sense tells me to play it safe."

Once I get the gaskets changed out, we'll see if that takes care of the roughness if it is related, or perhaps we'll accidentally find the vacuum leak. Not sure when I can get this scheduled, but I will update the post when done.


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