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engine dies without any codes
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shawnjeremy
User
Nov 25, 2011, 12:52 PM
Post #1 of 13
(1602 views)
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engine dies without any codes
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1996
saturn
sl2
1.9 lt.dohc
107,298
starts and runs,but only for awhile like something getting hot then engine dies and cools off and will restart againg without any codes,I have checked the volts on battery,the alt.4 charging,the fan and motor,the fuel pump and for anything noticeable
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Nov 25, 2011, 1:19 PM
Post #2 of 13
(1578 views)
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Re: engine dies without any codes
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Have to catch what is wrong when it's down, fuel pressure perhaps?
T
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Hammer Time
Ultimate Carjunky
/ Moderator
Nov 25, 2011, 1:28 PM
Post #3 of 13
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Re: engine dies without any codes
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All "crank, no start" conditions are approached in the same way. Every engine requires certain functions to be able to run. Some of these functions rely on specific components to work and some components are part of more than one function so it is important to see the whole picture to be able to conclude anything about what may have failed. Also, these functions can ONLY be tested during the failure. Any other time and they will simply test good because the problem isn't present at the moment.
If you approach this in any other way, you are merely guessing and that only serves to replace unnecessary parts and wastes money.
Every engine requires spark, fuel and compression to run. That's what we have to look for.
These are the basics that need to be tested and will give us the info required to isolate a cause.
1) Test for spark at the plug end of the wire using a spark tester. If none found, check for power supply on the + terminal of the coil with the key on.
2) Test for injector pulse using a small bulb called a noid light. If none found, check for power supply at one side of the injector with the key on.
3) Use a fuel pressure gauge to test for correct fuel pressure, also noticing if the pressure holds when key is shut off.
4) If all of these things check good, then you would need to do a complete compression test.
Once you have determined which of these functions has dropped out,
you will know which system is having the problem.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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shawnjeremy
User
Nov 25, 2011, 1:36 PM
Post #4 of 13
(1567 views)
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Re: engine dies without any codes
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just thinkin of doing that but it seems like it would not start right back up if that was to be the problem
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shawnjeremy
User
Nov 25, 2011, 1:38 PM
Post #5 of 13
(1566 views)
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Re: engine dies without any codes
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it only does this when engine bay is hot ,wait a few min. to cool diwn and it starts againg more persitit when hot
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Hammer Time
Ultimate Carjunky
/ Moderator
Nov 25, 2011, 2:32 PM
Post #6 of 13
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Re: engine dies without any codes
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Run the tests I gave you while it's dead the next time.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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shawnjeremy
User
Nov 25, 2011, 2:41 PM
Post #7 of 13
(1555 views)
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Re: engine dies without any codes
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power to all injectors,no spark at end of plug wire but 12vlts @ + side of coil,did not do fuel pressure check yet
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shawnjeremy
User
Nov 25, 2011, 2:45 PM
Post #8 of 13
(1553 views)
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Re: engine dies without any codes
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after restart i got a spark @end of plug wire
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shawnjeremy
User
Nov 25, 2011, 2:55 PM
Post #9 of 13
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Re: engine dies without any codes
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could the coil packs get hot and shut down?
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Hammer Time
Ultimate Carjunky
/ Moderator
Nov 25, 2011, 2:56 PM
Post #10 of 13
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Re: engine dies without any codes
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Post back when you have all of the results tested exactly the way it reads.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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shawnjeremy
User
Nov 25, 2011, 3:15 PM
Post #11 of 13
(1544 views)
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Re: engine dies without any codes
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ok thanks
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shawnjeremy
User
Nov 26, 2011, 9:27 PM
Post #12 of 13
(1523 views)
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Re: engine dies without any codes
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 checked all and fouund out it was the cankshaft pos. sensenor,runs great and stronger with new coil packs and control mould.must always listen 2 whom u TRUST,did not need coil packs,nor a mod. but help out n preforomance,love the 1.9lt its tuff
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shawnjeremy
User
Nov 26, 2011, 9:30 PM
Post #13 of 13
(1522 views)
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Re: engine dies without any codes
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no ,not fuel pressure,inght. prom. ,its the crankshaft pos. sensor,all fixed,THANKS
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