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Relay

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Question
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
Overheating
This may be related to a failing coolant fan switch. As you may know the coolant fan switch helps to maintain the proper coolant temperature by turning on and off at specific temperature thresholds. When this switch is not working...
Question
My car is marking the abs
Hi there: I'm not quite sure as to what you're asking here, however, if the ABS system on your 2005 Saturn is not working properly, or the check engine or ABS warning lights have been triggered on the dashboard, you...
Question
Car ran fine than I parked it and won't start. Changed the crankshaft sensor, ignition coils, and throttle body and the car still wont start.
Hi there. Check the fuel pressure on the fuel rail and see if there is 35 psi or more. If the pressure is at 0 to 5 psi, then the fuel pump is not functioning correctly. Check the fuel pump...
Question
Over heating
This can be caused by a number of things such as low coolant levels, a faulty thermostat, or a failing coolant fan switch. As you may know the coolant fan switch helps to maintain the proper coolant temperature by turning...
Question
Replaced fuel pressure regulator and fuel pump,still no power going to fuel pump
This sounds like you may not have any power going to the fuel pump relay. The relay wires should have ground on two wires, power on one wire and switched power on another wire. To activate the fuel pump your...
Question
Starting issues
There are many things that may cause the car not to start, however based upon the previous symptoms you have described (i.e. hard starting), this suggests you may have had a starter relay that was previously working intermittently and has...
Question
How many motor mounts? 2005 Saturn Relay
Hello - for your model Saturn with the V6, there are 6 motor/transmission mounts in total. For assistance with this task, I would recommend an engine/transmission mount replacement by a mobile, professional mechanic, such as one from YourMechanic, who will...
Question
Car won't blow any hot or cold air
This may be related to a faulty blower motor or blower motor relay. The blower motor is a unit inside your vent system that blows warm air from the heater core to the vents when the heater is on or...
Question
The heater wont turn on, on any setting.
This may be related to a faulty blower motor or blower motor relay. Occasionally, the blower motor itself will wear out or become faulty working intermittently as the bruch contacts inside the motor wear out. The blower motor relay supplies...
Question
Engine cranks but wont run. Power not reaching fuel pump
This sounds like you may not have any power going to the fuel pump relay. The relay wires should have ground on two wires, power on one wire and switched power on another wire. To activate the fuel pump your...
Question
My car heater isnt working.
This may be related to a faulty blower motor or blower motor relay. The blower motor is a unit inside your vent system that blows warm air from the heater core to the vents when the heater is on or...
Question
Heater not working
This may be related to a faulty blower motor or blower motor relay. The blower motor is a unit inside your vent system that blows warm air from the heater core to the vents when the heater is on or...
Question
My truck wont blow either heat or cold air?
Assuming you are referring to the blower motor resistor being replaced, this is the unit that controls the speed of the blower motor (i.e. low, medium and high speeds). The blower motor relay is a separate unit that directs power...
Question
What can cause a.c in my car not blow out?
This may be related to a faulty blower motor or blower motor relay. The blower motor is a unit inside your vent system that blows warm air from the heater core to the vents when the heater is on or...
Question
Car won't start or crank ASD relay making rapid clicking noise when key out of ignition 1999 Dodge Intrepid
Hi there - you have pretty-well identified this problem yourself - well done! Yes, the Automatic Shutdown Relay appears to be sticking in the "power on" position, which is providing a power path to the fuel pump as well as...
Question
Fuel pump relay location.
Relays are always a good location to test a system. You are on the right track in that respect. Unfortunately, your car does not have a traditional fuel pump relay. It has what is known as the Fuel pump driver...
Question
My 2001 Honda Accord keeps overheating
This can be caused by a number of things such as low coolant levels, a faulty thermostat, a clogged radiator or a failing coolant fan switch. As you may know the coolant fan switch helps to maintain the proper coolant...
Question
Why does my Tahoe start with the fuel pump relay pulled out or left in?
Hi there. Check to see what relay you have pulled. If indeed you removed the fuel pump relay and the engine still starts up, then check the oil pressure switch. An oil pressure switch will kept the engine running as...
Question
Radiator fans wont turn off unless I turn off the car, why?
It sounds like you have checked just about everything that controls the fans other than the fan power relay itself. As you may know the coolant fan relay turns the fans off and on by receiving information from the coolant...

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