Journeyman 557e801cd4784d8ff835b38f3ce0382fce2b6648a740d3c63b0eb4abb5a716fbJourneyman
762 points
I've been a backyard mechanic for the last 17 years. I love learning from and watching videos on YouTube. My favorite YouTubers are ScannerDanner, EricTheCarGuy, and Eric from SouthMainAuto.
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Question Answered: What else can I do?
October 19, 2017, 01:03 AM
The coil should be easy enough to troubleshoot. Power comes from Fuse 9 10A and through the ASD relay. All injectors, oxygen sensors and the coil receive there power from there. All power wires are labeled as Dark Green / Orange, but the coil shows Dark Green / Black. The coil is grounded by the Black / Gray wire coming from the PCM. If there is power on the DkGrn/Blk wire on the coil with the key on, connect a test light to battery positive and see if you are getting pulsed ground signals from the Blk/Gry wire on the coil from the PCM. If you are not getting a ground, check the wire for breaks or check for the signal at the computer. If still no signal exists, check your inputs (ie. crank and cam sensors). All sensors (throttle position, cam, crank, temp, speed sensor) have a Black/Light Blue wire for ground which is shared by them all. The cam, crank and speed sensor share a 5v line with a red or orange wire.
Question Answered: What is wrong with my 2011 Kia Soul +?
October 19, 2017, 12:01 AM
There is no way someone on the internet can help with this mess, but I'll try to give you direction. Taking any car for a swim is never a good idea. Water getting where it's not suppose to be, with systems energized, is what got you to the point in time we're at now I believe. The horn circuit is the easiest to troubleshoot and would be where I would have a mechanic start. When you press the horn button on the steering wheel, does the horn relay up front click? Is there power and ground on the horn itself when the button is pressed? May be just a bad horn. The HVAC controller would be next on my list. Is the relay to engage the compressor working? Is it being commanded on? Are the cooling fans coming on with the A/C on? The HVAC controller is also in charge of the outside temperature sensor you seem to be having problems with. The ATM module controls the shift lock mechanism for shifting out of park. I would have a mechanic troubleshoot the easiest system first. It'll usually lead to you where the problem is. Good luck.
Question Answered: wipers keep running intermittantly when engine was on
October 18, 2017, 11:07 PM
There is no such thing as a simple switch these days. Acura managed to put a micro controller into the wiper switch that talks on the CAN bus. I'd suspect that the switch is bad, but a scan tool capable of "talking" to the switch would be necessary to give a 100% diagnoses.
Question Answered: I have a ford edge 2008 my car is overheating
October 18, 2017, 10:53 PM
Are you loosing/low on coolant? Do you have heat in the cabin? Does it only overheat while sitting still or while driving at highway speeds as well? More info is needed to get you in the ballpark of what's wrong.
Question Answered: over heating
October 18, 2017, 10:50 PM
It's possible you have a blown head gasket, sticking thermostat or clogged heater core. The fact that you are loosing coolant and overheating, leads me to guess you have a blown head gasket. Further testing to see if there is gas vapor in the coolant system is recommended to confirm. They sell kits at auto parts stores that would test for gas in the coolant.
Question Answered: 1990 infinity stalls while driving
October 14, 2017, 10:30 PM
Because it is a 1990 vintage, an ODBII scan tool won't work. Based on the available parts to replace on that engine, it could be several things, but I can give you one place to start. That engine uses a Mass Airflow sensor. With the car off, key out of the ignition, unplug the connector on the Mass Airflow sensor. Should be right next to the air filter and before the throttle plate. Try starting the car. Newer cars will revert to a default table in the computer memory and ignore that sensor. I hope that a car that old does the same thing. If the car runs considerably better, if it is able to run at all, change the Mass Airflow sensor.
Question Answered: Ac turns on and off
October 12, 2017, 09:51 PM
What is the model trim and engine size? Does the HVAC control module have an automatic function or is it all manual dials you set? My money would be on the blower motor controller, but further testing would be needed. It is basically a transistor that turns on and off very quickly to vary the speed of the blower motor and is the most likely to fail.
Question Answered: What runs 2007 FX4 4x4, GEM module or VSM
October 12, 2017, 09:33 PM
If you have the electrical 4x4 system, the Powertrain Control Module (PCM) controls the whole show. The 4x4 selector switch talks directly to the PCM. The PCM controls the 4x4 transfer case shift motor via 2 relays in the AUX Relay 1 box. Those relays are powered by Fuse 111 30 amp in the Central Junction Box. There is an encoder in the transfer case that reports the tx case position to the PCM. To test the selector switch, check the resistance between the 2 dark blue wire pins with the harness unplugged. Pins 2 & 3. The resistance should change at each switch position. There should not be an open or a short. This I found in the manual: The transfer case is equipped with an electromagnetic clutch which is located inside the case. This clutch is used to synchronize the front driveline. When the mode select switch (MSS) on the instrument panel is turned, the 4WD module (PCM) activates the electromagnetic clutch and powers the transfer case shift motor. When the shift motor reaches the desired position, as determined by the contact plate position inputs to the 4WD module (PCM), power to the shift motor will be removed. When the transfer case front and rear output shafts are synchronized, the spring-loaded lockup collar mechanically engages the mainshaft hub to the drive sprocket. Finally, the front axle integrated wheel ends (IWEs) are engaged and the electromagnetic clutch is deactivated.
Question Answered: What would cause front end bouncing when speed reach over 70-80 mph?
October 07, 2017, 11:47 PM
Have the wheels balanced. One of the weights that was installed during the original balancing may have come off.
Question Answered: Should the fan motor stay on at full temperature?
October 07, 2017, 11:46 PM
Usually on most cars, if the A/C is ON, the radiator fan stays on. If the A/C is OFF, the fan should cycle on and off based on the temperature of the coolant.
Problem Reported: Vibration Caused by Failed Rear Engine Mount
May 27, 2010, 11:09 AM
<p>A rear engine mount that is broken can cause an engine vibration felt in the vehicle. Replacing the failed mount will repair this problem.</p>
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