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Kevin350
New User
Aug 8, 2009, 5:38 AM
Post #1 of 8
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(This post was edited by Kevin350 on Dec 27, 2010, 2:25 AM)
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Aug 9, 2009, 12:36 AM
Post #2 of 8
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Re: 1990 Chevrolet C1500 -- Engine Stalling at Operating Temperature!
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Kevin,
Why do you need to jump it - bad or low battery or from running it down trying?
Try to determine lack of fuel by using/priming with starting fluid when down and also check for spark at spark plug end of a wire.
Simply tossing parts at it can confuse the real problem,
T
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Kevin350
New User
Aug 9, 2009, 3:50 AM
Post #3 of 8
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(This post was edited by Kevin350 on Dec 27, 2010, 2:25 AM)
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Aug 9, 2009, 4:03 AM
Post #4 of 8
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Re: 1990 Chevrolet C1500 -- Engine Stalling at Operating Temperature!
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OK: (Tom is fine) This seems clear that it's a spark issue now.
Coils are sensitive to heat. See if power even gets there when down and check connections which may also, somehow not make a good connection while hot. IDK - does this use an ordinary cap and rotor? Does the spring loaded carbon thing properly touch the rotor if that type?
Coil can be tested but if it can run you would need to know that it's down to get accurate results using a OHM meter and dang if I don't have the procedure on hand right now,
T
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Kevin350
New User
Aug 10, 2009, 6:16 AM
Post #5 of 8
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(This post was edited by Kevin350 on Dec 27, 2010, 2:26 AM)
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Aug 10, 2009, 7:29 AM
Post #6 of 8
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Re: 1990 Chevrolet C1500 -- Engine Stalling at Operating Temperature!
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What I get of that is cleaning dist cap and use of oil fouler extensions on 1 and 8 cylinder this now runs ok?
Find out what's up with the oil on just two. If really valve seals just allow engine to act as a braking force down a long hill (reasonably use #2 gear selection without overdoing that) and if a good puff of smoke (blue) comes out after the engine went thru that it's usually valve seals. From there - compression test in order.
A/C and rough idle. See if compressor turns reasonably easy by hand on the outer plate with a rag. If you can't turn it at all it could be seizing up causing undue labor on the engine that isn't covered by automatically raising idle to cover the normal load of A/C.
Use of a better oil might control the oil issue but could take time.
Alowing it to run rough too long will mess up converter(s) so don't leave it that way for long,
T
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Kevin350
New User
Aug 25, 2009, 10:39 AM
Post #7 of 8
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(This post was edited by Kevin350 on Dec 27, 2010, 2:26 AM)
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Aug 25, 2009, 12:55 PM
Post #8 of 8
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Re: 1990 Chevrolet C1500 -- Engine Stalling at Operating Temperature!
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Kevin,
Might be me alone with a suggesgtion but since module worked then the next GM bull is the wiring to it - make sure it's in good shape before losing hair over this,
T
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