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#533387 - 08/25/08 08:39 PM
'89 dies after warming up
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Member
Registered: 12/05/04
Posts: 341
Loc: Pasadena, Tx
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Car cools down and starts and runs fine for about 5 minits.
Good fuel pressure, even after dieing. No current codes.
TPS .40
coolant 85
MS inj pw 18.9
oxy sensor .45 to .61
deg spark 70
Batt 11.8 (engine off) 14.2 running
likely not related but I just replaced both the fans but haven't got it hot enough yet to test them. Prior owner had a wire from fuse 20 to the puller fan to make it always run with engine on. Wire(light guage speaker wire) burned up and fuse was blown which keyed me to a fan issue.
What would be your guess on the running problem? I am guessing crank position sensor.
_________________________
'88 red/grey Riviatta 113k Temp Parked
'88 red/tan coupe 224k Vandalized/destroyed
'90 white/burg conv 150k Daily Driver
'90 red/tan coupe 156k ready to drive
'89 blue/grey coupe 150k becoming a daily driver since vandals
'89 black/grey coupe ?k parts car
'89 silver/grey bought Howard's toy
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#533464 - 08/26/08 06:14 AM
Re: '89 dies after warming up
[Re: alex_houston]
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Member
Registered: 09/19/01
Posts: 541
Loc: Central New Jersey
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I'm leaning more towards the IAC.
It may not be openning after High idle turns off.
IAC Idle Air Control.
_________________________
Maker of the first street legal Super Charged Reatta.
'88 Reatta,
'91 Syclone,
'80 RoadHawk,
'94 RoadMaster Wagon
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#533625 - 08/26/08 09:57 PM
Re: '89 dies after warming up
[Re: Don B.]
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Member
Registered: 12/05/04
Posts: 341
Loc: Pasadena, Tx
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Different today. This evening I went out ot move the car to exchange the ICM but it will not start at all. I guess that rules out the IAC? I also bought a new crank sensor.
As soon as I can stand the mosquitos I will swap some things out.
_________________________
'88 red/grey Riviatta 113k Temp Parked
'88 red/tan coupe 224k Vandalized/destroyed
'90 white/burg conv 150k Daily Driver
'90 red/tan coupe 156k ready to drive
'89 blue/grey coupe 150k becoming a daily driver since vandals
'89 black/grey coupe ?k parts car
'89 silver/grey bought Howard's toy
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#533633 - 08/26/08 10:19 PM
Re: '89 dies after warming up
[Re: alex_houston]
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Long Time Member
Registered: 07/14/03
Posts: 3740
Loc: NE Georgia
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Not sure what an I A C or an I C M is but do them thar Reatta's have a C O I L . If so maybe what I just dealt with with a lil 54 Special might help.  http://forums.aaca.org/ubbthreads.php/topics/532557/Vapor_Lock#Post532557
_________________________
Lamar in Athens, Georgia
BCA- 39474, 1959 BDBCA-0021, AACA-228846  1954 BUICK "The Beautiful Buy"1954 Roadmaster 76R, 2 DR HT - DoraB, (Irene,gone down under) 1954 Roadmaster 72R 4 DR - Buttercup, Dakota, Blue Belle, Virginia, Marietta, "High Society" (thank you Paul Meyer) 1954 Century 66R 2 DR HT- "54Muscle" w/3 speed stick(thank you Jim Schilf & Norm Kortus), Mary Jane Verkauft bis ein, wer 54 Buicks in Deutschland liebt, dankt Freund 1954 Special 41D 4 DR Deluxe Sedan 3 speed- Sugar Magnolia
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#533641 - 08/26/08 10:38 PM
Re: '89 dies after warming up
[Re: alex_houston]
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Long Time Member
Registered: 03/29/03
Posts: 2610
Loc: Schenectady, NY
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Take apart the coil packs and clean the corrosion under the spark control module. Also take the top half of the spark control module off the base and clean the corrosion under there also. Light sandpaper ought to do but I also put on a light coat of oxygard, a product used in electricians line of work which helps protect against corrosion inbetween these parts again.
I recommend you try this BEFORE the crank sensor.
_________________________
John C. De Fiore BCA # 3757 56 Super 56R Purchased 1974 69 GS 400 Convertible Added in 2003 69 Electra Limited 2 dr.( well, no longer limited although still unique) Purchased in 1995 or thereabouts 78 Estate Wagon added 10-2008 95 Riviera Supercharged (sold) 2006 06 Lacrosse CXL "I wonder if I can get the Feds to bail out my old cars?" Member of the UPSTATE NY CHAPTER check it out at http://unybca.skyphix.com/
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#533817 - 08/27/08 05:48 PM
Re: '89 dies after warming up
[Re: JohnD1956]
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Member
Registered: 12/05/04
Posts: 341
Loc: Pasadena, Tx
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ICM seems to have fixed the problem.. And thank goodness the fan seems to be cycling.
_________________________
'88 red/grey Riviatta 113k Temp Parked
'88 red/tan coupe 224k Vandalized/destroyed
'90 white/burg conv 150k Daily Driver
'90 red/tan coupe 156k ready to drive
'89 blue/grey coupe 150k becoming a daily driver since vandals
'89 black/grey coupe ?k parts car
'89 silver/grey bought Howard's toy
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