only goes in 1st and fourth gear sometimes

2008 HYUNDAI SANTA FE
63,000 MILES
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SQURIL
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When i start it then usually doesn't again when i take off from next stop tech.changed input and output speed sensors and map sensor and still doesn't run right check engine light on something electronic but what could it be its automatic notice gears on dash through the shiftronic
Oct 14, 2012 at 8:25 PM
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ASEMASTER6371
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what is the code number???

rolling over gears could be electronic but we need the code


Roy
Oct 14, 2012 at 8:31 PM
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SQURIL
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Code cam up output sensor again but now it has to be deeper tech changed input and output sensor brand new
Oct 15, 2012 at 1:33 AM
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KHLOW2008
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We need the EXACT code number, not just the description.
Oct 15, 2012 at 7:20 AM
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SQURIL
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Before the output and input sensor and map sensor were changed the codes were p0722 and p1107. any chance you can be the trans fluid sensor I seen a guy online have almost the exact same symptoms and the tech told him it was the trans fluid sensor does that make sense
Oct 15, 2012 at 11:51 AM
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KHLOW2008
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A code does not necessarily mean a bad sensor. Any loose connections with wiring, broken wires or a bad PCM can be the cause.

P0722 - Output Speed Sensor Circuit, no signal.
P1107 - MAP sensor short or intermittent low voltage.

For both problems it could be the wirings that is at fault. Any loose or contaminated connections can cause that.

After replacement of the sensors, are the trouble codes the same?

The MAP sensor should not affect the transmission shifting but can cause erratig idling , stalling or difficult starting.
Oct 15, 2012 at 12:25 PM
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SQURIL
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P0722 only came up for output sensor after install
Oct 15, 2012 at 1:39 PM
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KHLOW2008
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Recheck the sensor and its connector. Ensure the wires are not broken as they can be brittle and removal installation can break.
Oct 15, 2012 at 3:14 PM
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SQURIL
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I had a technician do it is there anyway I can look under the truck to see where the sensor and wiring is ,or is it too hard to get to ,and I need to take it to a tech. again
Oct 15, 2012 at 3:50 PM
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KHLOW2008
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It is not too difficult to get to but you might need to remove the battery and air cleaner.
Oct 15, 2012 at 4:07 PM
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SQURIL
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do you think that most likely my problem or still other possibilities? Here I thought the sensors were under the car
Oct 15, 2012 at 4:52 PM
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KHLOW2008
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If the code is there, it means the problem is with the circuit but it also can mean a transmission internal fault but we usually start with the basics and easy part.

Why were the sensors replaced? Was there any previous codes prior to this?
Oct 15, 2012 at 4:55 PM
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SQURIL
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Those codes came up and dealer decided they needed to be replaced about two weeks before they said I had a misfire and they took care of that
Oct 15, 2012 at 5:09 PM
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KHLOW2008
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My suggestion is to recheck the connectors for the sensors and wiring thereabouts.

Is the MAP sensor code still present?
Oct 15, 2012 at 6:36 PM
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SQURIL
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checked map sensor code went away , was able to check wires felt and looked together and secure , any other suggestions what it could be
Oct 15, 2012 at 7:14 PM
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KHLOW2008
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If the code comes back after driving, you would need to perform diagnosis such as checking the wires for continiuty to PCM. Ensure the sensor is correct.
Oct 15, 2012 at 7:58 PM
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SQURIL
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Any chance the car is not reset right and the old habits are there from before the new installations or not possible
Oct 15, 2012 at 8:03 PM
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KHLOW2008
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When a problem occurs, erasing the trouble codes would work. When vehicle is running again, the codes would come back if the trouble is still there. Did you erase the previous codes and retest?
Oct 15, 2012 at 8:07 PM
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SQURIL
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yes ,and we drove it for about a half hour light came back on do you think I need to take it to a tech and have him go over the wiring 2 the speed output sensor
Oct 15, 2012 at 8:56 PM
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KHLOW2008
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Yes, you should.
Oct 15, 2012 at 9:04 PM
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SQURIL
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If nothing is found do you think it must be an internal transmission fault ? If so is that a big project and real expensive any idea of ballpark cost would be appreciated
Oct 15, 2012 at 11:01 PM
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KHLOW2008
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Transmission rebuilds usually cost between 2 to 3 k but can vary depending on location and repairs required.
Oct 16, 2012 at 8:00 AM
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SQURIL
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turns out it's the wire harness to my PCM I have a bad connector so my buddy rigged it with some plastic ties pulled real tight has been working great not sure if it's possible just put a new connector on ,or do I have to have the wires ran thru again. Will see thanks for all your advice. If you have oher thoughts on situation let me know. Thanks again you answered all my questions quickly thanks,dean
Oct 23, 2012 at 3:40 AM
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KHLOW2008
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New connectors would come complete with the wireharness and would be rather pricey. Salvage yards might have them at a reasonable cost but if it is only a connector, maybe you can have it foc.

Oct 23, 2012 at 5:57 PM