An expert who has achieved level 3 by getting 1000 points
An expert that got 10 achievements.
An expert that got 5 achievements.
An expert who has achieved Level 3.
Re: help with my mitsubishi magna 1994
Could be a few things.If you check radiator fan and its ok move down to the thermal power switch usualy at the bottom of the radiator.Make sure you have power in and out of the swich when the engine is at operating temp.Use a test light/probe easy to use and cheap to buy.If the switch is ok the next step is the relay in the box with lid next to the battery.Sometimes just pulling the relay out and putting back in will fix the problem due to poor contact.To sum up its usualy the thermal temp switch but check every thing else before wasting money on the wrong things.Good luck
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
check cooling fans fuse and relay.bad engine coolant temperature sensor will cause coolant fans not to turn on.if AC system not working with no refrigerant in the system cooling fans wont turn on when you turn on the AC.problem in PCM will cause fans not to turn on.
YOU MAY HAVE BLOCKAGE, FIRST CAREFULLY FEEL THE RADIATOR TO SEE IF IT IS AS HOT AS THE SMOKE SEEMS IT TO BE!IF IT IS COOL, THATS ONE OF THE REASONS THE FAN IS NOT ON!! IT THINKS THE CAR CAR IS STILL COLD, START WITH THAT DFF
Overheating is cause by many things anywhere from a bad water pump to a bad fan switch to determine if ur fans are working run the car and let it run for about 15 minutes your fans shou come. on with in this period good luck hope this helps
Look in your manual for fuse diagram LOOK FOR A RELAY, put a "RF" on top of the "Radiator Fan relay and find another with same part number. in the fuse compartment. ie Air Cond. put an "A C" on that one, switch them out and get engine HOT to see if fan works, turn AC on too if it works the relays are both good. next things to check [a] "Temperature switch" on block, or [b] corroded wire terminal at firewall connections [c] the fan motor could be bad ...... that Radiator fan operate TWO ways. (1) a hot engine (2) turn the AC on high will also turn it on. Check this first before U get your hands greasy.
The fans have a seperate temperature sensor either in the radiator or the block. Follow the fan wires to locate this sensor and unplug the sensor and with the key on touch the wires together. If the sending unit is bad the fans will come on. If the sending unit works the fan motor is bad.
Possibly when the radiator fan kicks on it robs a little power from the engine causing it to shutter a little.When the engine is in park the RPM is higher thus when the fan comes on it doesnt cause much of a load on the engine.Just open the hood as someone starts the car,puts it in park and feel for the fan to come on and see if it's causing the engine to shutter
First off, I would disconnect the power supply to the fan and let the engine heat up to operating temperature and use a simple volt meter (you can purchase one at walmart or any part store for $5-15) to see if any voltage is even getting to the fan, it is possible that the fan motor could have failed. Also, you can run a couple wires directly from the battery to the fan ( one for negative, one for positive) it shouldn't matter if you switch up which is which on the fan, as a DC motor will just spin in reverse if you swap the polarity. This will rule out the possibility of the fan.