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2006 Hyundai Tucson 2.7 l keeps flooding
- Zfrtech1
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2 days 20 hours ago - 17 hours 57 minutes ago #92976
by Zfrtech1
2006 Hyundai Tucson 2.7 l keeps flooding was created by Zfrtech1
Hey once again been stumped on this vehicle automotive tech by trade journeyman 2006 2.7 l Hyundai Tucson Don't know where else to go with this. Go to start it and it just rumbles and floods like crazy plugs are all wet. Changed the MAF sensor, coolant temperature sensor spark plugs,IAC actuator, TPS , compressions good 195 to 210, change the ignition coil pack. Checked valve timing. New belt, pulled. The fuel pump relay then it runs up good briefly, attached to some pictures of the codes I pulled so yes, would appreciate your input as I am lost and where to go from here.. Thanks in advance, 😊✌️
Last edit: 17 hours 57 minutes ago by Chad. Reason: Removed "private" status.
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2 days 5 hours ago - 2 days 5 hours ago #92977
by Noah
Replied by Noah on topic 2006 Hyundai Tucson 2.7 l keeps flooding
All these codes come right back after you clear them and crank the engine?
I would verify first that you have good, strong spark for the entire cranking duration. I see you changed plugs and coils but didn't mention checking spark.
Is the coolant temp data pid accurate? I see you changed the sensor, but no mention of if it is reading correctly.
I would also take a fuel sample and check for water, diesel or 2 cycle fuel as well as check fuel pressure. It doesn't happen often but I have seen excessive fuel pressure issues.
Exhaust back pressure would have to be quite excessive, but can stop an engine from starting. I would also measure the pressure in the exhaust.
Those compression readings sound very high to me for that engine.
That's the compression you measured on all six cylinders? If you have an in cylinder pressure transducer and oscilloscope, that may go a long way to verifying mechanical timing and integrity.
You say "checked valve timing, new belt". Did you pull the covers to check the cam timing and discover it had a new timing belt, or did you install a new timing belt?
Did this happened after the "new belt"?
I would verify first that you have good, strong spark for the entire cranking duration. I see you changed plugs and coils but didn't mention checking spark.
Is the coolant temp data pid accurate? I see you changed the sensor, but no mention of if it is reading correctly.
I would also take a fuel sample and check for water, diesel or 2 cycle fuel as well as check fuel pressure. It doesn't happen often but I have seen excessive fuel pressure issues.
Exhaust back pressure would have to be quite excessive, but can stop an engine from starting. I would also measure the pressure in the exhaust.
Those compression readings sound very high to me for that engine.
That's the compression you measured on all six cylinders? If you have an in cylinder pressure transducer and oscilloscope, that may go a long way to verifying mechanical timing and integrity.
You say "checked valve timing, new belt". Did you pull the covers to check the cam timing and discover it had a new timing belt, or did you install a new timing belt?
Did this happened after the "new belt"?
Last edit: 2 days 5 hours ago by Noah.
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1 day 22 hours ago #92978
by Zfrtech1
Replied by Zfrtech1 on topic 2006 Hyundai Tucson 2.7 l keeps flooding
Hey Noah, thanks for your reply and helping out.. driving me crazy otherwise.. compression on all cylinders are 195 to 210. . installed new belt , water pump tensioner cam seals ,valve timing dead on.. Yes, got to figure a way to do fuel pressure test as there's no Schrader valve.. Yes, erased codes and they pop up right away,.. Yes, checked on all cylinders with a tester and it's sufficient,. Sorry, don't have a cylinder pressure. Transducer or oscilloscope ,I wish.. going to pull the exhaust. See if the catalytic is plugged or broken plugging up the exhaust chamber.. fuel seems to be fresh. Put injector cleaner in, cleaned up the throttle body etc.. All right. Appreciate your input. Thank you so much!👌😊✌️
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1 day 22 hours ago #92979
by Zfrtech1
Replied by Zfrtech1 on topic 2006 Hyundai Tucson 2.7 l keeps flooding
All right, added some attachments on the coolant temperature sensor and a few others
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1 day 22 hours ago #92980
by Zfrtech1
Replied by Zfrtech1 on topic 2006 Hyundai Tucson 2.7 l keeps flooding
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17 hours 36 minutes ago #92983
by Chad
When is Calculated Load 59.6%? Is that cruising or at idle?
"Knowledge is a weapon. Arm yourself, well, before going to do battle."
"Understanding a question is half an answer."
I have learned more by being wrong, than I have by being right.
Replied by Chad on topic 2006 Hyundai Tucson 2.7 l keeps flooding
Those are all circuit codes. Have you done any circuit integrity testing?erased codes and they pop up right away
When is Calculated Load 59.6%? Is that cruising or at idle?
"Knowledge is a weapon. Arm yourself, well, before going to do battle."
"Understanding a question is half an answer."
I have learned more by being wrong, than I have by being right.
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14 hours 30 minutes ago #92984
by Zfrtech1
Replied by Zfrtech1 on topic 2006 Hyundai Tucson 2.7 l keeps flooding
Hey Chad, thanks for your reply and help haven't managed to get it. Started cranked in the driveway. Fires up stumbles and dies and these codes keep popping up,. Never had it running. Long enough to run No power.. any suggestions on where I should go from here on on the circuit testing? Pretty limited on tools. As for the sophisticated ones, that is all right. Thanks for your help. Much appreciated. Rob 😊✌️
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2 hours 9 minutes ago - 2 hours 2 minutes ago #92985
by Chad
"Knowledge is a weapon. Arm yourself, well, before going to do battle."
"Understanding a question is half an answer."
I have learned more by being wrong, than I have by being right.
Replied by Chad on topic 2006 Hyundai Tucson 2.7 l keeps flooding
I think I would start with the P1507.
Make sure that the "closing" wire from Idle Speed Control Actuator to the ECM is good. An Ohm meter can help determine if the circuit is, truly, OPEN or shorted to ground.
Here, is some info on P1507:
Here, are the engine control wiring schematics:
drive.google.com/file/d/1D2uKK5PNEuHY-Mg...g8n/view?usp=sharing
Make sure that the "closing" wire from Idle Speed Control Actuator to the ECM is good. An Ohm meter can help determine if the circuit is, truly, OPEN or shorted to ground.
Here, is some info on P1507:
Here, are the engine control wiring schematics:
drive.google.com/file/d/1D2uKK5PNEuHY-Mg...g8n/view?usp=sharing
"Knowledge is a weapon. Arm yourself, well, before going to do battle."
"Understanding a question is half an answer."
I have learned more by being wrong, than I have by being right.
Last edit: 2 hours 2 minutes ago by Chad.
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