> I don't see any evidence that there was coolant in the oil (and none in the
> oil changes I have done this year). But I have notice that the coolant
> reservoir is on empty. I was to the full mark a year ago. I it possible
> the dexcool just started to eat away at the intake manifold gasket, just
> enough to create an air leak (to create a lean condition)? btw: the
> anti freeze look and smells terrible, it looks like it has chunks of
> something in it. I read on the net that dexcool is very corrosive and
> eventually will eat away at the rad and other parts.
>
> Also, some web sites say it's the coolant that is the root problem , because
> it corrodes everything, while other web sites claim it is a poorly designed > gasket.
> --------------
> previoius post
>
> I posted before, but now I found some info re intake manifold gasket
> problem especially in venture and montana's. Could this be the
> saurce of my problems?
> There is a law suite in the work.
>
> I asked the mechanic again what exactly did the scanner read. He
> said the left bank reading was lean on my venture van 2000. He also
> mentioned that cylinder 6 is miss firing (I assume that the left bank is > cylinder
> 2,4, and 6). I replaced the 6th cylinder spark plug which was really > worn
> (I should replace 2nd cylinder spark plug it was also worn, 4th was ok).
> And at first it seamed that starting the van was a lot easier. But
> next day engine light was back on and it takes about 5 tries before the
> ignition starts. Durring a hot day starts fine, but the engin still > sounds
> like it is miss firing. On occasion there is a strong spell of gasoline
> towards the back of the van, but most of the time I don't smell any thing. >
> Question can ignition problems have anything to with this lean
> reading. Can it be related to the miss firing problem? If so, If so
> difficulty starting especially in the mornings, does that give you a clue > if it
> could have something to do with a bad sensor as opposed to miss firing
> problem? I would like to address the mostly likely problem first or the > easiest
> solution first. Also, if you think it is the sensor's fault,
> which one would I have to replace?
>
> btw: I year ago I had sugar in the gas tank, so I had the tank
> replaced. And added some fuel injection cleaner in the gasoline. Then had > no
> engine light go on for 4 months. Then engine light disappeared again.
> And now that it is warm again, engine light is on again.
>
> lbbs
if your coolant level was full last year and now it is empty???? how as it a month after last year??? how often do you check it??? you should check it each time you gas up and add what it needed.... you dont have a leak.. the stuff is just evaporating... and if it was last year, you should flush it out and put some good old Prestone in it and dont worry about it....