Engine act's like Blown... only sometimes.
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Engine act's like Blown... only sometimes.
Ok this is kind of stupid question, but if apex seal is bad, can it shake and sound like blown engine only when you start it once, and then whole week it drives like it's perfect?
This happend to me yesterday. I started it and it started shaking, like crazy, vaccum only like 10 or so. So I shut it down, touched stupid MAP sensor and turned it back up and it runs great again.
I'm suspecting Map sensor, but is it possible for it to sometimes work but when it stays over night and then in the cold morning it goes to ****?
Give me your opinions, i'm trying to get a map sensor just in case.
Amel
This happend to me yesterday. I started it and it started shaking, like crazy, vaccum only like 10 or so. So I shut it down, touched stupid MAP sensor and turned it back up and it runs great again.
I'm suspecting Map sensor, but is it possible for it to sometimes work but when it stays over night and then in the cold morning it goes to ****?
Give me your opinions, i'm trying to get a map sensor just in case.
Amel
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Amel,
I think it might be the MAP sensor.. Never really heard of one working partially, but I'm sure it's possible. Maybe the connections inside are bad. Come get mine.
I think it might be the MAP sensor.. Never really heard of one working partially, but I'm sure it's possible. Maybe the connections inside are bad. Come get mine.
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Now if it is your MAP sensor then great, no major problem and a easy fix.
But I have had a something close to that happen in two of my rides and my buddies ride does it more often.
On cold or simi cold starts the car will idle bad and shake. I have noticed vacuum was low on my 3g but can't say for sure on the others (not enough gauges to tell). Sometimes shutting the car down helps and others it just needs to fully warm up and very engine speed for a bit. After a few minutes it all goes away and the idle is normal and rock solid.
I was trippin on this for years. Just a few months ago I thought it could have been a carbon stuck apex seal that frees it's self once warm? This would cause two chambers to lose compression and act like a blown motor. Other then that I have no idea. Both engines have been compression tested and are it great shape. Compression is not an issue although I have never compression checked the engine while this was happening. It happens very few and far inbetween.
Just sounds like what I have run into and wanted to share my experience.
But I have had a something close to that happen in two of my rides and my buddies ride does it more often.
On cold or simi cold starts the car will idle bad and shake. I have noticed vacuum was low on my 3g but can't say for sure on the others (not enough gauges to tell). Sometimes shutting the car down helps and others it just needs to fully warm up and very engine speed for a bit. After a few minutes it all goes away and the idle is normal and rock solid.
I was trippin on this for years. Just a few months ago I thought it could have been a carbon stuck apex seal that frees it's self once warm? This would cause two chambers to lose compression and act like a blown motor. Other then that I have no idea. Both engines have been compression tested and are it great shape. Compression is not an issue although I have never compression checked the engine while this was happening. It happens very few and far inbetween.
Just sounds like what I have run into and wanted to share my experience.
Last edited by x605p747R1; 08-16-04 at 04:54 PM.
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