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1998 suburban suddenly stalled no start
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66blackford
New User
Jan 15, 2013, 11:02 PM
Post #1 of 6
(1509 views)
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1998 suburban suddenly stalled no start
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My 1998 suburban was running fine and just stalled. It turns over just fine but the oil presure gauge reads 0 during cranking and the fuel gauge is so far past full line like its shorted out. its oil is on the full line so I dont think its an oil presure safty sensor if it has one?
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Hammer Time
Ultimate Carjunky
/ Moderator
Jan 16, 2013, 4:05 AM
Post #2 of 6
(1484 views)
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Re: 1998 suburban suddenly stalled no start
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There is no oil pressure shutdown function in any car. That would be unsafe.
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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nickwarner
Veteran
/ Moderator
Jan 16, 2013, 4:06 AM
Post #3 of 6
(1481 views)
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Re: 1998 suburban suddenly stalled no start
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You need to do some tests to determine what you're losing to keep this from starting. Here is a procedure from a fellow moderator Hammer Time.
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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nickwarner
Veteran
/ Moderator
Jan 16, 2013, 4:07 AM
Post #4 of 6
(1476 views)
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Re: 1998 suburban suddenly stalled no start
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and looks like he posted at the same time I did.
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Hammer Time
Ultimate Carjunky
/ Moderator
Jan 16, 2013, 4:07 AM
Post #5 of 6
(1476 views)
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Re: 1998 suburban suddenly stalled no start
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Haha ......... I beat ya Nick
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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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nickwarner
Veteran
/ Moderator
Jan 16, 2013, 4:12 AM
Post #6 of 6
(1473 views)
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Re: 1998 suburban suddenly stalled no start
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I'm going to set my alarm earlier tomorrow so I can get there first.
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