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#1: 88 Cabriolet floods when hot

Posted on 2006-07-17 02:41:42 by PeterD

I've an 88 cabriolet that is flooding when hot. Been an off-and-on
problem for a few years, but getting worse.

Recently tuned up, I suspect the '#5" injector may be leaking, but is
there anything else I should check as well?

(runs well once started and cleared out.)

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#2: Re: 88 Cabriolet floods when hot

Posted on 2006-07-17 03:16:04 by One out of many daves

how do you know that it is flooding?

&quot;PeterD&quot; &lt;<a href="mailto:peter2&#64;hipson.net" target="_blank">peter2&#64;hipson.net</a>&gt; wrote in message
news:<a href="mailto:o0nlb2dssjcmvta6kf09kovjd0dvnsd231&#64;4ax.com..." target="_blank">o0nlb2dssjcmvta6kf09kovjd0dvnsd231&#64;4ax.com...</a>
&gt; I've an 88 cabriolet that is flooding when hot. Been an off-and-on
&gt; problem for a few years, but getting worse.
&gt;
&gt; Recently tuned up, I suspect the '#5&quot; injector may be leaking, but is
&gt; there anything else I should check as well?
&gt;
&gt; (runs well once started and cleared out.)

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#3: Re: 88 Cabriolet floods when hot

Posted on 2006-07-17 15:32:05 by PeterD

On Mon, 17 Jul 2006 01:16:04 GMT, &quot;One out of many Daves&quot;
&lt;<a href="mailto:vwdoc2001&#64;ameritech.net" target="_blank">vwdoc2001&#64;ameritech.net</a>&gt; wrote:

&gt;how do you know that it is flooding?
&gt;
&gt;&quot;PeterD&quot; &lt;<a href="mailto:peter2&#64;hipson.net" target="_blank">peter2&#64;hipson.net</a>&gt; wrote in message
&gt;news:<a href="mailto:o0nlb2dssjcmvta6kf09kovjd0dvnsd231&#64;4ax.com..." target="_blank">o0nlb2dssjcmvta6kf09kovjd0dvnsd231&#64;4ax.com...</a>
&gt;&gt; I've an 88 cabriolet that is flooding when hot. Been an off-and-on
&gt;&gt; problem for a few years, but getting worse.
&gt;&gt;
&gt;&gt; Recently tuned up, I suspect the '#5&quot; injector may be leaking, but is
&gt;&gt; there anything else I should check as well?
&gt;&gt;
&gt;&gt; (runs well once started and cleared out.)
&gt;

&lt;g&gt; Good question. I worked on that problem for a while. The cylinders
are 'soaked' with gas when it won't start. Leaving the plugs out for a
while will let it start.

Sometimes the 'press accelerator to the floor hard' flooded engine
technique will work, but other times it seems to be just too much for
that to work.

All cylinders seem to be equally bad, which is why I suspect #5
instead of one of the individual injectors.

I'd love to find a schematic of the engine system (the plain old CIS
variety).

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#4: Re: 88 Cabriolet floods when hot

Posted on 2006-07-17 21:37:37 by PeterD

On Sun, 16 Jul 2006 20:41:42 -0400, PeterD &lt;<a href="mailto:peter2&#64;hipson.net" target="_blank">peter2&#64;hipson.net</a>&gt; wrote:

&gt;I've an 88 cabriolet that is flooding when hot. Been an off-and-on
&gt;problem for a few years, but getting worse.
&gt;
&gt;Recently tuned up, I suspect the '#5&quot; injector may be leaking, but is
&gt;there anything else I should check as well?
&gt;
&gt;(runs well once started and cleared out.)

Well, more testing... (man, it's hot out!)

Doesn't seem to be flooding today. Doesn't seem to be getting any gas
at all to start. There was a lot of crap (oily stuff) around the
air-flow sensor plate which a can of carb cleaner took off nicely.
(and it took an entire can to get it all!)

Still hard as the dickens to start hot (and not easy when cold, but
much better). Runs well once started, good performance, no stumbling
or misfires.

I guess this may be a factor: the car is only used in the summer, and
sits over the winter each year (an 1988 with 44K miles on it).

This same problem happened a couple of years ago, and went away by
itself after a few weeks.

I did toss in a can of Techron injector cleaner today and a full tank
of gas.

Q: that sensor on the engine side fo the upper radiator hose. (There
are two, one with one wire, the other has two wires). The two wire
sensor: what does it do? Is it a switch, or a variable resistance? I
read 50 ohms to ground from one pin, 100 ohms the other pin, and 50
ohms between the two pins. Seems 'odd'. I'd thought it was the 'cold'
start sensor (a switch), but those readings don't seem right.

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