For gods sakes help me!
03-13-2009, 09:30 PM
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For gods sakes help me!
My 1999 Bonneville vin 3.8-K starts easily, at the first time, when engine is cold. Or After Sitting A Few Hours!Or a few times after I try right away.
But after engine is hot (200 degree-midline), it gets difficult to start (hard start)
Or Barely starts - Ruff - Shakeing Ect. . If I push the gas pedal several times.Sometimes I can Get it to Run.
Once it starts, it runs smoothly! Great !
Thing runs great after ( if ) i get it started .. Let it sit for a hour or two starts fine.
I have replaced every sensor .. spark plugs / wires And ALL the fuel injectors!
And No Its Not the fuel Pressure regulator! I Replaced that too!
No engine/service lights.
Any idea? For gods sakes help me ! LOL Its Driving Me Crazy !
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Last edited by MrWeary; 03-13-2009 at 09:34 PM.
03-13-2009, 09:52 PM
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03-13-2009, 10:43 PM
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I Search Everywhere on the net NOT ONE PERSON SAID THAT SENSOR!
Check The Fuel Pump Check The MASS air flow Check the Presure Reg.
Check This Try That .. Replace This Ohhh its Got to be a leakey Fuel Injector!
Replaced 1,000,000,00 $ Of Parts .. Oh It Still Does It.
No No you say try this: air temp sensor - Air Charge Sensor
So I Unplug The dam Thing .. and HUH ? Starts right Up. When Hot!
Air Charge Sensor
Part Number: SU176
Weight: 0.05 lbs.
Pricing:
$11.99
11$ ??? OMG I wana kill myself!
03-13-2009, 11:15 PM
#7
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MRWEARY;
You obviously needed to come here first!
Chasing sensors down can be a bear and very frustrating, especially when they aren't throwing a code. Sounds like you got it fixed though courtesy of Dan.
Please add your year and trim of your vehicle to your signature line. That way when you start asking questions in other areas of the forum, we all have a better idea on how to assist you. Click on "Quick Links" above, go down to "User Control Panel" and then click on "Edit your Signature" It'* pretty straight forward from there.
You obviously needed to come here first!
Chasing sensors down can be a bear and very frustrating, especially when they aren't throwing a code. Sounds like you got it fixed though courtesy of Dan.
Please add your year and trim of your vehicle to your signature line. That way when you start asking questions in other areas of the forum, we all have a better idea on how to assist you. Click on "Quick Links" above, go down to "User Control Panel" and then click on "Edit your Signature" It'* pretty straight forward from there.
03-14-2009, 12:03 AM
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MRWEARY;
You obviously needed to come here first!
Chasing sensors down can be a bear and very frustrating, especially when they aren't throwing a code. Sounds like you got it fixed though courtesy of Dan.
Please add your year and trim of your vehicle to your signature line. That way when you start asking questions in other areas of the forum, we all have a better idea on how to assist you. Click on "Quick Links" above, go down to "User Control Panel" and then click on "Edit your Signature" It'* pretty straight forward from there.
You obviously needed to come here first!
Chasing sensors down can be a bear and very frustrating, especially when they aren't throwing a code. Sounds like you got it fixed though courtesy of Dan.
Please add your year and trim of your vehicle to your signature line. That way when you start asking questions in other areas of the forum, we all have a better idea on how to assist you. Click on "Quick Links" above, go down to "User Control Panel" and then click on "Edit your Signature" It'* pretty straight forward from there.
Well .. It Kinda Fixed it .. Just went out to start it .. been sitting there for 45 minutes.
Same Old thing .. starts but runs like its way to rich .. studders.. have to push the gas pedel several times to make it run. untill i can get it cleared.. then runs fine.
( shakes Head .. ) Ijust dont get it.. is there something elese that would tell the computer
to run it rich ? when hot ?
03-14-2009, 12:08 AM
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The IAT, MAF, and O2 sensor all work together. A easy MAF test is to simply unplug it. If the engine runs better, you may have found the problem. Just keep your foot off the heavy gas. The O2 sensor should be replaced after 60k or so. Try testing your TPS https://www.gmforum.com/t279319/ It might cause some problems.