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Anonymous Poster
babysmith33@sbcglobal.net
Dec 24, 2006, 8:32 PM
Post #1 of 9
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no start in sight
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 i am working on an 87olds98 3.8 i put new cranksenser starter computer coil/module and coil on but iget nothing and feulpump works andhas power and new plugs but still wont start will not try to start
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Dec 25, 2006, 1:09 AM
Post #2 of 9
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Re: no start in sight
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What's missing? Spark or fuel? Sometimes the basics lead the way,
Merry Christmas,
T
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Guest
Anonymous Poster
Dec 26, 2006, 5:58 PM
Post #3 of 9
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Re: no start in sight
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has both but blue spark
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Dec 26, 2006, 8:51 PM
Post #4 of 9
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Re: no start in sight
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I'm not too worried about the spark color. Try some starting fluid in the intake for any reaction which would lead to a fuel or fuel pressure problem if that works at all, T
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Guest
Anonymous Poster
Dec 27, 2006, 8:00 PM
Post #5 of 9
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Re: no start in sight
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nothing with starting fluid no back fire nothing
could it have jumped a couple of theeth
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Dec 27, 2006, 8:31 PM
Post #6 of 9
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Re: no start in sight
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Possible but just a couple teeth on timing chains will still react if not run.
Compression test would tell you and I bet you should see about 125 or more if things are close or correct. They last quite a while but poor maintenance or real high miles can change that. A history of hard overheating if so will also play a role, T
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Guest
Anonymous Poster
Dec 29, 2006, 4:24 AM
Post #7 of 9
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Re: no start in sight
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nothing with starting fluid could it have jumped a couple of theeth
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Dec 29, 2006, 8:13 AM
Post #8 of 9
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Re: no start in sight
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Like I said -- if it jumped a couple teeth it would still react to starter fluid by bucking, backfire or something. Somewhere around 3 or 4 teeth off you won't get much of anything.
If this is the case the engines sound a bit funny even cranking. The compression drops way off so it has no resistance so cranks too easily.
Vehicles with timing belts have more problems with total breakage than ones with chains. If this totally broke you wouldn't be getting a blinking spark at all. Cars with crank sensors probably would still give you blinking spark -- hasn't happened to me so not sure on that point.
Remember we may be off to the wrong diagnosis here but it would be nice to rule this out, T
(This post was edited by Tom Greenleaf on Dec 29, 2006, 8:16 AM)
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Guest
Anonymous Poster
Dec 31, 2006, 6:35 PM
Post #9 of 9
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Re: no start in sight
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125 for pressure so it is good there could it be soming simple
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