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Where is the heater fan blower motor relay located? 2003 Chevy Silverado 1500
Hello - the blower fan relay is located behind the glove box - small black plastic square. Make sure both fuses for the HVAC/heater are good, and have power to them (one is 10 amp, one is 30 amp). If...
Question
How do you reset computer for check engine light
In order to get the reset the ECM and get the check engine light to turn off I would recommend having a check engine light inspection having a mechanic like one from YourMechanic come to you and scan the computer...
Question
Transmission missing first and second gear
If solenoids are identified in a Diagnostic Trouble Code(s) as a potential fault, they must be tested before they are condemned. If the solenoids tested bad OR the shop exhaustively ruled out ALL of the many other potential causes of...
Question
Oil pressure sensor works erratic
You will need to check to see if the oil pressure sensor got damaged when all the work was performed. If it is damaged in any way then replace oil pressure sensor. If the pressure sensor is not damaged then...
Question
2004 Tahoe turn signal on and the headlights blink also.
Hi there. Check to see where you have grounded the wires to the lights on the front of the vehicle. It sounds like that all of the lights are being grounded on the same terminal. This is why the headlights...
Question
Radiator leak
It is not recommended to drive the vehicle with a major coolant leak. You should have the cooling system pressure tested by a mechanic like one from YourMechanic that can come to you and test and find the coolant leak...
Question
Truck died and won't even crank over
The GM vehicles around this model year have a notorious problem for theft and ECM issues. I would recommend having your [vehicle inspected]https://www.yourmechanic.com/services/check-engine-light-is-on-inspection) by a qualified professional who is proficcient in General Motors theft system diagnosis and repair. These systems...
Question
I have replace the fuel injectors and now i have a p0200 code aswell a p0300 code. What can it possibly be
Hi there: The P0200 OBD-II code indicates that the engine control module (ECM) has detected a malfunction in the fuel injector circuit. The fuel injector circuit controls the fuel injectors and commands how much fuel and when to spray the...
Question
Steering wheel position sensor is bad . Is it safe to use four wheel.drive? 2012 Chevy Silverado
Hi there - yes, your truck is safe to drive. However, the failure of the steering wheel position sensor will eliminate suspension stability control and traction control functions, so be more cautious in slippery conditions. I would recommend replacement of...
Question
Heater is blowing but not hot. Repaired the hole in the radiator. Why doesn't heat up? 2008 BMW X5
Hello - there are several possible causes for a "no heater function". If the thermostat is not allowing the engine to heat up properly (center of the temp gauge), or there is lots of air still in the coolant system,...
Question
Can I wire up many things to my truck battery?
Hello - while the LED light bar has a small load factor, the winch is a heavy current load. If you were running the AC, wipers, all vehicle lights, and the winch at the same time, you are probably drawing...
Question
My car won't go up steep hills
Hello. Going up a hill is considered "extra load" on the engine. Issues with handling this extra load are typically due to poor engine performance. Starting with the spark plugs was a good idea. When you change the ignition coils,...
Question
My radio and dash lights turn off once my vehicle has stopped and the driver door is open. Is this something you can repair?
Hi there. The wires to the dash and radio may have been shorted with the speaker wires that run to the doors. When the driver door is opened, the wires may short out causing a short to ground eliminating the...
Question
What causes my truck to die when I take my foot off the gas pedal while in a turn?
Hi and thanks for contacting Your Mechanic. What seems to be happening is the idle air control valve (IAC) is not working. This valve controls the idle of the engine when the gas pedal and the throttle position sensor is...
Question
Radiator is cold even after a motorway run,and can smell the oil getting hot.
Hi there - based on the symptoms, this could either be a failed water pump (unlikely - even with no flow, conduction of heat would warm the radiator slowly), or, most likely a failed thermostat. I would also expect that...
Question
P0446 Check engine code
Hi there. The system will set the message if it attempts a self test and finds atmospheric pressure in the tank. The gas cap may not be the concern here as this message is directly related to a large leak...
Question
Running into issues when I put a 2004 motor in a 2002 body of a Chevrolet Silverado
The engines are fairly identical, but the manufacturer made a few upgrades on the newer model engine. You should have swapped all of the fuel system parts and electronics from the old engine to the new one. The intake manifold,...
Question
Engine won't idle when cold - 2001 Chevrolet Silverado
Hi there - given your repairs already, I would suspect a fuel-related issue, specifically the engine coolant temperature sensor (for engine management, not the gauge). If a faulty temperature signal is sent to engine management, the engine may not be...
Question
engine sounds like its running faster than it is, like idle sounds fast but not
Hi there: High idle speed is commonly caused by a vacuum leak, problems with the EGR system or the idle control valve on our 2000 Chevrolet Silverado. The best way to determine which one specifically or other item is causing...
Question
I changed ignition starter switch, it cranked then die again. Fuel pump is not coming on. Could it be the ignition switch itself?
The ignition switch turn on circuits to supply power to the vehicle, but does not control the fuel pump itself. If your vehicle is equipped with a fuel filter, it can clog and cause the fuel pump to work harder...

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