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Subject:
L98 low vacuum and running rough or not at all.
From: "cel(at)nospam.com" <cel(at)nospan.com>
Subject: L98 low vacuum and running rough or not at all.
Lines: 13
NNTP-Posting-Host: 67.169.32.238
Date: Fri, 25 Jun 2004 07:22:12 GMT
________________________________________________
I have an 88 L98 that run real poorly or not at all. I checked the ignition,
fuel pressure and injectors and they seem to be fine. I did notice one big
problem, the vacuum at idle is only 10 in of Hg and at part throttle is low
too. Any hints on how to find the vacuum leak or other problem that is
causing this?
Thanks,
Reponded to clintonlum(at) yahoo.com (take the space out)
Clinton
From: X-Eliminator <blablabla(at)aohell.com>
Subject: Re: L98 low vacuum and running rough or not at all.
Date: Fri, 25 Jun 2004 08:55:26 -0500
Lines: 22
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With the engine running, take a mechanic`s stethoscope and listen for
leaks around the throttle body, plenum gaskets, EGR valve and any
other place where you might think that there might be a vacuum
connection or leak.
========================================================
On Fri, 25 Jun 2004 07:22:12 GMT, "cel(at)nospam.com" <cel(at)nospan.com>
wrote:
>I have an 88 L98 that run real poorly or not at all. I checked the ignition,
>fuel pressure and injectors and they seem to be fine. I did notice one big
>problem, the vacuum at idle is only 10 in of Hg and at part throttle is low
>too. Any hints on how to find the vacuum leak or other problem that is
>causing this?
>
>Thanks,
>
>Reponded to clintonlum(at) yahoo.com (take the space out)
>
>Clinton
>
From: "Mike" <mikeellison3|x|(at)|x|yahoo.com>
Subject: Re: L98 low vacuum and running rough or not at all.
Lines: 32
Date: Mon, 28 Jun 2004 14:23:16 GMT
NNTP-Posting-Host: 68.6.136.218
________________________________________________
In <febod0dedvuuiofe69d0285mnh52b9uuc7(at)4ax.com>, X-Eliminator <blablabla(at)aohell.com> writes:
>With the engine running, take a mechanic`s stethoscope and listen for
>leaks around the throttle body, plenum gaskets, EGR valve and any
>other place where you might think that there might be a vacuum
>connection or leak.
>
>========================================================
>On Fri, 25 Jun 2004 07:22:12 GMT, "cel(at)nospam.com" <cel(at)nospan.com>
>wrote:
>
>>I have an 88 L98 that run real poorly or not at all. I checked the ignition,
>>fuel pressure and injectors and they seem to be fine. I did notice one big
>>problem, the vacuum at idle is only 10 in of Hg and at part throttle is low
>>too. Any hints on how to find the vacuum leak or other problem that is
>>causing this?
>>
>>Thanks,
>>
>>Reponded to clintonlum(at) yahoo.com (take the space out)
>>
>>Clinton
>>
>
You can also use `propane enrichment` if you don`t have a
stethescope. As the engine idles, play a stream of propane
from an unlit torch around mating surfaces and vacuum
lines/fittings. Listen for a change in idle.
Regards, "Mike"
-- mikeellison3xxxatzzzyahoo.com --
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