Lots of Problems need advice - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 01-12-2008, 04:23 PM   #1
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Default Lots of Problems need advice

My 98 L 67 has got all kinds of little(I hope) problems.
Cruise Control quit working
SES light is on,
Security light is on sometime
Coolant leak from reseviour Im afraid it leaking into the oil
Blower doesn't always work
Need help Please
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Old 01-12-2008, 04:29 PM   #2
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id start by scanning the computer to pull the codes. and that will give you a place to start with.
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Old 01-12-2008, 05:23 PM   #3
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well i did scan the codes, said heater fan, but the heater fan works. I took it to the dealer he said the pcm or ecm was bad. Are they the same thing.
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Old 01-12-2008, 09:04 PM   #4
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Default Re: Lots of Problems need advice

Quote:
Originally Posted by jberg6
Coolant leak from reseviour Im afraid it leaking into the oil
is your oil white foamy looking? if so stop driving it, you're going to kill it. other wise its leaking somewhere else.

cruise might be a vacuum leak, not sure about bonnies but i think its vacuum controlled.

the computer said that the heater fan was bad? wasn't that what you mean when you said the blower?
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Old 01-13-2008, 12:31 AM   #5
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Default Re: Lots of Problems need advice

Quote:
Originally Posted by Darrel
Quote:
Originally Posted by jberg6
Coolant leak from reseviour Im afraid it leaking into the oil
is your oil white foamy looking? if so stop driving it, you're going to kill it. other wise its leaking somewhere else.

cruise might be a vacuum leak, not sure about bonnies but i think its vacuum controlled.

the computer said that the heater fan was bad? wasn't that what you mean when you said the blower?
x2, if the oil is looking funny, stop driving the car till you fix the problem. sometimes the oil will look like coffee with creamer.

pcm and ecm refers to the same part. but technicall you have a pcm ( powertrain control module) ecm is just engine control

and by 98 the cruise was servo controlled.


but can you clarify the "blower" not working, you mean you have no boost, or no heat blowing?
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Old 01-13-2008, 03:26 AM   #6
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the blower comes on intermittently, the oil looks fine and I think the cruise has to do with the pcm
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Old 01-14-2008, 05:45 PM   #7
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the heating and cooling blower goes off and on

where is the vacuum line for the cruise located
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Old 01-14-2008, 05:50 PM   #8
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Quote:
Originally Posted by jberg6
where is the vacuum line for the cruise located
Quote:
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and by 98 the cruise was servo controlled.?
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Old 01-14-2008, 06:07 PM   #9
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yeah, i've never owned anythign newer then my 95 so I wasn't aware of that. my bad.
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