Oct 092017
 

2006 Pontiac Montana

How do you reset the in dash temperature? Or the temperature sensor for ambient temperature, outside temperature? It is a 2006 Pontiac Montana SV6 with the 3.5 engine.


Ambient Temperature Sensor Replacement

There is no reset procedure. If the reading is off you may need to replace the sensor or check the wiring harness connections. The ambient outside temperature sensor is locate on the radiator support.

The radiator support flange mounts the ambient outside air temperature sensor near the radiator baffle. A 2-wire weather pack electrical connector attaches the ambient outside air temperature sensor to the forward lamp harness. In order to service the ambient outside air temperature sensor, perform the following steps:

  1. Disconnect the electrical connector (3) from the outside ambient air temperature sensor through the fascia opening.
  2. Remove the push in retainer (2).
  3. Remove the outside ambient air temperature sensor (1) from the vehicle.

ambient temperature sensor location diagram 2006 Pontiac Montana

Brake lines 2000 Chevy Impala

 Auto Repair Questions, Chevy  Comments Off on Brake lines 2000 Chevy Impala
Oct 092017
 

2000 Chevy Impala

My 2000 Chevy Impala LS 3.8 motor brake lines are shot. Wondering how much it’s going to cost me to replace them. I believe it’s only the front ones.


Brake line Cost

If you are referring to the brake hoses that attach to the calipers it shouldn’t take more than a hours worth of labor. Around $100 plus parts and tax of course. The labor guide does not reference replacing the brake lines and will normally be charged by the hour for how ever long it takes. I wouldn’t think any longer than a couple of hours plus parts.

Oct 092017
 

2002 Ford Mustang

I need to see which color wires and what holes they plug in on engine wiring harness that control fuel injectors, coils, etc. It has 25 to 30 pins.


I shall provide you with the engine wiring diagram in 3 parts. (best viewed with Chrome or Firefox)

Engine Wiring Diagram 2002 Ford Mustang GT

2002-ford-mustang-gt-engine-controls-1-of-3
2002-ford-mustang-gt-engine-controls-2-of-3
2002-ford-mustang-gt-engine-controls-3-of-3
Oct 052017
 

1994 Chevy Corsica

I have a Chevy and it starts up but when you put in gear it stalls would it be the starter or something else?


Something else. The starter is used to “start” the engine and is disengaged once it starts.  The most common cause for this would be the TCC Torque Converter Clutch solenoid. In most cases if you can unplug the TCC solenoid (5 in diagram) at the transmission and the stalling issue will go away. However the converter will no longer lock up. This will leave you with the impression that you no longer have overdrive. Rest assured, you can drive the car this way for as long as you would like or until you decide to drop some serious coin and have it fixed.

TCC Solenoid location diagram 1994 Chevy Corsica

The TCC Solenoid

The TCC solenoid is what actually causes the TCC to engage and disengage.

When the TCC solenoid receives a signal from the ECM, it opens a passage in the valve body and hydraulic fluid applies the TCC. When the ECM signal stops, the solenoid closes the valve and pressure is vented causing the TCC to disengage. If the TCC fails to disengage when the vehicle comes to a stop, the engine will stall.

Source: ThoughtCo.com

Oct 052017
 

2000 Chevy Malibu

AC blower controls

I’m having issues with AC blower controls flap will go from face to feet after a few minutes then comes back randomly.
Recently found out I had a leak on AC compressor and had it replaced at a shop. We have had issues with my AC button on my AC Heater control switch. When I would push the AC switch and start driving down the road then it would would randomly turn off by itself. Looked up online and and seems to be a common issue with several GMs around that year. I saw a video on how to fix on your own (didn’t think I would be that crafty) so I just bought a new AC Delco AC Heater control switch. I installed the control switch and for the first time in a long time I had continuous cold AC.

Seems the face vents go out

But now it seems another issue has popped up. When I get into car and turn on air I always have just regular air going thru the top face vents. I hardly ever use the feet fan even in winter. The AC will be running fine then it seems the face vents go out and only can feel a lower feet vent. This isn’t permanent as while driving it will switch back to face or after parking. Is this an electrical, vacuum or bad new switch? Is the flap controlled by a vacuum or some type of electrical motor?
Also we had an unusually cool night and I tried something new I had run the face vent with just warm air and it stayed to face vents the whole trip. So not sure if that will help in anyway but thought I would include it.
My car has 159268 miles. My car has an automatic transmission. It has the 3.1 L V6 engine.


This vehicle is equipped with vacuum actuators that control the opening and closing of the vent doors and temperature blend door. So there is a chance that you may have a small vacuum leak or failing actuator. The fact that once you are driving for a while gives it a chance to build up some vacuum pressure. This allows the actuators to work for a while until they loose vacuum again.

vacuum acuator diagram 2000 Chevy Malibu

  1. Actuator Vacuum Hose
  2. Vacuum Actuator
  3. Vacuum Hose Harness
  4. Harness Connection

HVAC Air Delivery/Temperature Control Circuit Description

The vacuum actuators move the air valves in the HVAC system (except the temperature valve). Vacuum is applied to the actuators through the mode selector in the heater A/C control assembly. The mode selector consists of a rotary vacuum switch. The rotary vacuum switch supplies vacuum to the vacuum actuators according to the operating mode selected by the driver. A small servo motor moves the air temperature actuator. The small servo motor positions the door according to the voltage level from the temperature selector in the heater A/C control assembly. The temperature selector is a potentiometer positioned by the temperature control knob on the front of the heater A/C control assembly.

Air Temperature Actuator

When the ignition switch is in the RUN position, battery voltage is applied to the air temperature actuator. The actuator receives ground at all times through the following components:
•CKT 251
•Ground G204

The temperature selector is a potentiometer with a wiper arm. The wiper arm is electrically tied to the air temperature input through CKT 733.

When the temperature selector is moved between COLD and HOT, voltage to the control input varies between 1 and 12 volts. The temperature valve motor solid state circuitry performs the following tasks:
•Looks at the control input voltage
•Moves the motor to correspond to the control input voltage

The temperature valve moves for the following reasons:
•In order to allow the air to pass through the heater core
•In order to allow the air to pass around the heater core

This control achieves the desired passenger compartment temperature.

Oct 052017
 

2007 Dodge Charger R/T

Was driving home and car started to get hot. I stopped the car and the temp gauge went all the way to C. So I started it up and engine  sounded great, temp gauge stayed on C. I had two stop signs and then I slowed down to turn in my drive and it died. At that point the tank was hot so I pushed it in driveway. This morning went to start it and it had a loud noise clanking in the front and won’t stay running. I’m thinking timing chain because it was OK when it died. Unsure.


Sounds about right. I would remove the serpentine belt and start it up again to make sure it is an internal noise before digging into the timing chain.

Oct 042017
 

2004 Chrysler Concorde

2004 Chrysler Concorde 2.7 recently developed code p0700 a general tranny code and p1779 solenoid switch in the l/r position. Did some looking and found a bare wire on either the speed input sensor or output sensor. Not sure what on. I fixed the problem and now the cruise control works as well. Could that have caused the tranny codes?


Yes.

Chrysler Code P0700

Transmission Control System (Malfunction Indicator Lamp Request)

 Code P0700 Probable Causes

  1. Sensor or solenoid faulty
  2. Update control unit software – Check for the latest control unit update
  3. Powertrain or Engine Control Module faulty
  4. Transmission system malfunction

Generic Code P1779

Engine Torque Delivered to TCM Signal

Code P1779 Probable Causes

  1. Sensor or solenoid faulty
  2. Connector terminal contact is damaged or corroded
  3. Wire harness – Check harness for correct voltage, open, short to ground or short to voltage
  4. Update control unit software – Check for the latest control unit update
  5. Powertrain or Engine Control Module faulty
Oct 032017
 

2011 Hyundai Tuscon

CBD II codes: P0302, P0170, and P2006 Can the engine problems be resolved by using a fuel additive/cleaner and replacing the fuel filter?


I would have to say NO. You may review the code information and see it is going to take a bit more than a filter and fuel change.

Hyundai Code P2006

Intake Manifold Runner Control Stuck Closed Bank 1

Code P2006 Probable Causes

  1. Sensor or solenoid faulty
  2. Connector terminal contact is damaged or corroded
  3. Wire harness – Check harness for correct voltage, open, short to ground or short to voltage
  4. Update control unit software – Check for the latest control unit update
  5. Powertrain or Engine Control Module faulty

Hyundai Code P0170

Fuel Trim (Bank 1)

Code P0170 Probable Causes

  1. Sensor or solenoid faulty
  2. Update control unit software – Check for the latest control unit update
  3. Powertrain or Engine Control Module faulty
  4. Fuel pressure – Pump, regulator, filter or lines

Hyundai Code P0302

Cylinder 2 Engine Misfire Detected

Code P0320 Probable Causes

  1. Update control unit software – Check for the latest control unit update
  2. Powertrain or Engine Control Module faulty
  3. Fuel injector(s) faulty
  4. Ignition system – Ignition module, coil, spark plugs and wires
  5. Fuel system
Oct 032017
 

Hyundai Sonata

I can’t get any pressure on the low side on a/c but hi side has pressure.


No pressure on low side

This is an indication of a restriction.

clogged orifice tube gauge reading

On a fully charged system, insufficient low-side pressure is normally the result of a restriction. A clogged orifice tube is a common cause of such problems. The high-side pressure may be elevated as the compressor attempts to force the refrigerant past the obstruction. This will quickly starve oil flow to the compressor and cause a catastrophic failure.

Source: agcauto.com

Oct 022017
 

2005 Mercury Montego

First I am not sure, if its a CVT or traditional automatic transmission ? I am pretty much suspecting its the traditional one. It has tiny yellow plastic dipstick between transmission & radiator, more easily accessible from underneath the car.
Second, any guide on dropping the pan & replacing/servicing the transmission filter. I see its not horizontal, it vertically lying between transmission & radiator.


It is a CVT – Continuously Variable Transmission. Here is the procedure for replacing the transmission fluid and filter.

Transmission fluid and filter change

2005-mercury-motego-fluid-pan-gasket-and-filter-in-vehicle-repair