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2006 Hyundai Elantra engine swapping nightmare
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Mofackoo
Novice
Aug 4, 2018, 8:36 PM
Post #1 of 14
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2006 Hyundai Elantra engine swapping nightmare
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I'm going to try to make this as short and direct as possible please ask me anything you need to clarify.
06 Elantra 150k miles salvage title flood car.
Ran awesome. Blew a 4in hole in my engine .
Ripped the engine out.
Purchased and installed a "new" engine (used engine from pull a part rrpm an 05 Hyundai Elantra). Joe everything is installed and hooked up it gets interesting.
Cranks but won't start. Sounds like is gonna but won't. Replaced spark plugs and battery. Still receiving weak spark(orange) . Also after cranking it several times you can hear a hissing sound from underneath the air intake? I think.but I have had ears so I don't know for sure. Tightened starter. . Only thing different from the 2 engines that I can see is there are 2 left over sensor plugs on my wire harness with no homes. So idk if I have compression due to the His and I'm sure imreciein weak spark. I replaced fuel pump relay and horn relay both were blown. Please what can I do.????????
EDIT: Ignition coil tests at primary .7 ohms secondary 9.39 for both coils. Spark plugs gapped correctly. Catalytic converter removed and cleaned no blockages present. Still, no start weak spark.
(This post was edited by Mofackoo on Aug 5, 2018, 11:41 AM)
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Mofackoo
Novice
Aug 5, 2018, 11:47 AM
Post #3 of 14
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Re: 2006 Hyundai Elantra engine swapping nightmare
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What if I exchanged the computers from r the computer that goes with the " new" engine? When I looked it up the engines were "compatible" for the swap that's why I did i t only one year difference between the two engines, even same make/model. So there is no way this engine will run even tho it want to? I been doing this for some 4 monthes now i haven't serious sly wasted almost half a year and so much money?
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Hammer Time
Ultimate Carjunky
/ Moderator
Aug 5, 2018, 11:54 AM
Post #4 of 14
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Re: 2006 Hyundai Elantra engine swapping nightmare
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That's pretty much the bottom line. You have wasted half a year.
Every car is engineered with an operating system for one specific engine and that is the only engine it will operate. Apparently you don't even know which sensors are missing.
No, simply swapping computers will not help. The wiring is different.
There is always the possibility you could swap certain components from the old engine to bring back those sensors but I don't have enough info to determine that.
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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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Mofackoo
Novice
Aug 5, 2018, 8:05 PM
Post #5 of 14
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Re: 2006 Hyundai Elantra engine swapping nightmare
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Ok, please, what kind of information would you need to know for that possibility? I have the old engine still of course and other than the actual piston and engine wall the engine is still in beautiful shape, removing sensors wold be fairly easy. I have pictures I'll upload right now maybe that will help. O ok wont let me upload please what information do you need.??????
(This post was edited by Hammer Time on Aug 6, 2018, 5:13 AM)
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Hammer Time
Ultimate Carjunky
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Aug 5, 2018, 8:10 PM
Post #6 of 14
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Re: 2006 Hyundai Elantra engine swapping nightmare
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For starters, what sensors were on the old engine and not on the new engine.
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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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Mofackoo
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Aug 6, 2018, 4:39 AM
Post #7 of 14
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Re: 2006 Hyundai Elantra engine swapping nightmare
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After researching all night I found these 2 sensors to be absent on the"new" engine.
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Hammer Time
Ultimate Carjunky
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Aug 6, 2018, 4:50 AM
Post #8 of 14
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Re: 2006 Hyundai Elantra engine swapping nightmare
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OK, you are officially in deep Sh!t. Those are controls associated with VVT (variable valve timing).
If one engine has it and the other doesn't, they are not interchangeable.
You simply bought the wrong engine and that can't be resolved with that engine.
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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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Mofackoo
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Aug 6, 2018, 5:00 AM
Post #9 of 14
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Re: 2006 Hyundai Elantra engine swapping nightmare
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So bear with me here there is no way to bypass the vvt? Like remove the controls from old engine and connect them but just kind of set them where they go? It's my family every day car I gotta come up with some sort of solution.
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Hammer Time
Ultimate Carjunky
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Aug 6, 2018, 5:11 AM
Post #10 of 14
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Re: 2006 Hyundai Elantra engine swapping nightmare
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I already answered that. No, they are entirely different engines internally.
PS, I deleted your oversized pictures from the earlier post. They were making the thread too hard to read and they served no purpose anyway.
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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.
(This post was edited by Hammer Time on Aug 6, 2018, 5:14 AM)
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Mofackoo
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Aug 6, 2018, 5:28 AM
Post #11 of 14
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Re: 2006 Hyundai Elantra engine swapping nightmare
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I looked them up and apparently 2003-2006 Elantra we're all cvvt and I am replacing the 06 with a 04 how would I verify CVVT on my engine?
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Hammer Time
Ultimate Carjunky
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Aug 6, 2018, 5:53 AM
Post #12 of 14
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Re: 2006 Hyundai Elantra engine swapping nightmare
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You already did. It doesn't have the VVT actuator shown in your picture.
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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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Mofackoo
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Aug 6, 2018, 6:39 AM
Post #13 of 14
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Re: 2006 Hyundai Elantra engine swapping nightmare
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Ok I understand now that I look at my engine. So my final option is can I just put my old head on this new engine block here and then the car will run yeah? That would hit all my sensors and plugs right?
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Hammer Time
Ultimate Carjunky
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Aug 6, 2018, 6:43 AM
Post #14 of 14
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Re: 2006 Hyundai Elantra engine swapping nightmare
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You're just beating a dead horse here.
You have the wrong engine. Remove it and get the right one.
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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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