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PostSubject: Wont Start   Wont Start Icon_minitimeMon Apr 27, 2015 6:28 pm

Got in the OCC this AM to go get breakfast,engine started but ran very rough and was smoking white smoke and then I smelled gas.Tryed to give it some gas but it stalled and never started again.Fairly new optima red top,almost full tank of 100% real gas which has made a big change in the way the engine was running.Has about 16000 miles on a complete tune-up,new fuel filter and K&N air filter.Tryed to start again and began turning over like the timing was way to advanced.Only has 75000 miles on car and has been the most trouble free car Ive ever owned.
Thanks Guys
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JaySS
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JaySS

Posts : 402
Join date : 2009-01-06

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PostSubject: Re: Wont Start   Wont Start Icon_minitimeMon Apr 27, 2015 8:16 pm


From your description, it sounds like it is being considerably over-fueled.

The coolant temperature sensor would be my first check.

- J
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lakeffect
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lakeffect

Posts : 3891
Join date : 2009-08-18
Location : Rochester NY 14621

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PostSubject: Re: Wont Start   Wont Start Icon_minitimeMon Apr 27, 2015 9:08 pm

Maybe the timing IS way too advanced. Put a timing gun on it. 91 has a conventional distributor in it. It actually could have slipped. But I doubt that's the problem.

The WHITE smoke bothers me. Rich is usually black smoke from unburned hydrocarbons. I'm wondering if you are getting coolant into a cylinder(s).

Might want to read this...

[You must be registered and logged in to see this link.]
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PostSubject: Re: Wont Start   Wont Start Icon_minitimeTue Apr 28, 2015 7:26 am

Will replace the sensor,I have a new one already.Will let you know.I watched the video,hope that's not the problem.
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PostSubject: Re: Wont Start   Wont Start Icon_minitimeTue Apr 28, 2015 7:51 pm

Thanks Dan,goimg to start tomorrow if my back permits.
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PostSubject: Re: Wont Start   Wont Start Icon_minitimeTue May 05, 2015 12:41 am

JaySS wrote:

From your description, it sounds like it is being considerably over-fueled.

The coolant temperature sensor would be my first check.

- J

You were right on the mark Jay,finally got around to replacing the sensor and it fired right up.Figured I would replace the easy sensor on top first and the one between 1 and 3 plugs tomorrow.
Thanjs Again
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lakeffect
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lakeffect

Posts : 3891
Join date : 2009-08-18
Location : Rochester NY 14621

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PostSubject: Re: Wont Start   Wont Start Icon_minitimeTue May 05, 2015 6:16 am

Good to hear that you got it fixed.


Dave
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PostSubject: Re: Wont Start   Wont Start Icon_minitimeWed May 06, 2015 12:00 am

Thanks Dave
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Sprocket

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Location : Palm Beach County

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PostSubject: Re: Wont Start   Wont Start Icon_minitimeThu May 07, 2015 3:27 pm

And filed for future reference. Curious as to what the coolant temp sensor affects how much fuel gets dumped....
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802



Posts : 97
Join date : 2015-03-16
Age : 57
Location : Vermont

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PostSubject: Re: Wont Start   Wont Start Icon_minitimeThu May 07, 2015 8:46 pm

Sprocket wrote:
And filed for future reference.  Curious as to what the coolant temp sensor affects how much fuel gets dumped....

I don't know the answer, but causes enough change to stop the engine.
Ask me how I know...
If I recall correctly, it threw a precise code and so was quickly resolved.
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boonville



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Join date : 2015-05-18

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PostSubject: Re: Wont Start   Wont Start Icon_minitimeMon Jun 08, 2015 9:55 pm

I'm having a similar problem. would a bad coolant sensor cause the coolant res. to fill above the cold fill line? Also my oil and voltage warning lights stay on when the key is in the on position.

Glad I'm not the only one hopelessly in love with a station wagon!
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Dutch Pete

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Posts : 421
Join date : 2009-12-07
Age : 59
Location : Netherlands

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PostSubject: Re: Wont Start   Wont Start Icon_minitimeFri Jun 12, 2015 1:35 pm

Hey Jim, good that it's fixed. it didn't threw any codes?
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PostSubject: Re: Wont Start   Wont Start Icon_minitimeFri Jun 12, 2015 6:02 pm

I found out afterward that it threw the coolant temperature code.
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200OZ
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200OZ

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Age : 44
Location : Farmington NY.

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PostSubject: Re: Wont Start   Wont Start Icon_minitimeSun Jun 14, 2015 12:37 am

Colder = more fuel.
Warmer = Less fuel.

boonville: No, a bad sensor will not effect the coolant level. The BATT. light, and oil light will stay on when the ignition is in the run position, and the engine is not running. So that's normal.
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buickwagon

buickwagon

Posts : 954
Join date : 2011-06-10
Location : Muskoka, Ontario

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PostSubject: Re: Wont Start   Wont Start Icon_minitimeSun Jun 14, 2015 5:37 am

802 wrote:
If I recall correctly, it threw a precise code and so was quickly resolved.

A bad coolant temperature sensor will not always throw a code. A code will be set if the sensor resistance is extremely high or extremely low, but will not be set if the resistance is merely very wrong.

I once had it happen that the sensor was telling the ECU that the temperature was +20°C (about +70°F) when in fact the temperature was really -20°C (about -5°F). Since +20°C is well within the range of acceptable values, there was no code, but the ECU did not add near enough fuel to start such a cold engine.
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