Question about 2007 Infiniti Q45

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1994 infiniti q45 i keep adding freon but still no change in temp, change fuses and relays still nothing, ac fan does not com on unless jumped wot cud this be?

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Posted on Jan 02, 2017

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SOURCE: 1994 Infiniti Q45 fan relay?

Well, first of all that 15V thing you are removing is not a spark plug. It is a fuse. If the fuse versus sparkplug thing is challenging you may need a little help identifying a relay. But, and I am not a mechanic just a average guy, find your fan. Find the wires leading away from the fan going towards your wireharness junction. The relay shold be along the way. It iwll look like a block, pretty small, smaller than your fist, plugging into a connector with wires. Look carefully with a flashlight at the connector and relay. Carefully release the clips holding the relay into the connector. Take a crayon, yellow and make a line from the connector over therelay so you can put it back easily, most only go back one way but you never can be too catreful. Gently twist and pull the relay out of the connector while twisting being careful not to break wires of the connector. When the relay comes free take it away from your Q45 and get some alcohol and some Q-tips. Gently clean the relay prongs, the things that stick out from the relay, metal, and don't use too much alcohol. Let the relay air dry for a minute or two. Put it back together. The TCS module is way over your head. Go to a trusted garage. If the unit is bad surf the net and shop for a new one to make sure you are not getting ripped off on the price of the part. Ask to see the labor hour estimate onb his computer as well. They may charge you a bit to diagnose the problem...sorry but that is life. Love your Q45 and it will love you back. I have a 95 Q45 with 187,000 miles and expect to have it go at least 300,000 miles. Great car.

Posted on May 18, 2008

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SOURCE: 1992 infiniti q45

motor run ruff and will not ideal

Posted on Aug 13, 2008

SteveRand
  • 210 Answers

SOURCE: lost power while driving

More often, the voltage regulator in the alternator is worn.

It usually screws on/into the alternator, and when you pull it out it has two "brushes" which are usually just silver/copper blocks. Those blocks are designed to wear down, and they are pushed onto the alternator with a spring.

The part is cheap on most cars, and you can do it yourself quite easily. Just don't forget to unplug the battery before unscrewing the regulator!

Posted on Feb 06, 2009

  • 563 Answers

SOURCE: alternator for 1998 infiniti q45

You simply disconnect the battery, and use sockets/wrench to remove the alternator. Make sure the battery is fully charged up before you install the new alternator.

Posted on Nov 10, 2009

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Are there any applicable trouble codes?
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My cooling fans will not come on with the ac on nor when the temp reaches as high as 235 degrees while driving..At first trhe fan would come on when i turned the ac on but when i tried to test the other...


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LOOKING FOR WIRING DIAGRAM FOR 1992 INFINITI Q45 FUEL PUMP NOT GETTING POWER OR RELAY OR SOMTHING NEED WIRING DIAG.


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1992 infiniti q45


motor run ruff and will not ideal

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1994 Infiniti Q45 fan relay?


Well, first of all that 15V thing you are removing is not a spark plug. It is a fuse. If the fuse versus sparkplug thing is challenging you may need a little help identifying a relay. But, and I am not a mechanic just a average guy, find your fan. Find the wires leading away from the fan going towards your wireharness junction. The relay shold be along the way. It iwll look like a block, pretty small, smaller than your fist, plugging into a connector with wires. Look carefully with a flashlight at the connector and relay. Carefully release the clips holding the relay into the connector. Take a crayon, yellow and make a line from the connector over therelay so you can put it back easily, most only go back one way but you never can be too catreful. Gently twist and pull the relay out of the connector while twisting being careful not to break wires of the connector. When the relay comes free take it away from your Q45 and get some alcohol and some Q-tips. Gently clean the relay prongs, the things that stick out from the relay, metal, and don't use too much alcohol. Let the relay air dry for a minute or two. Put it back together. The TCS module is way over your head. Go to a trusted garage. If the unit is bad surf the net and shop for a new one to make sure you are not getting ripped off on the price of the part. Ask to see the labor hour estimate onb his computer as well. They may charge you a bit to diagnose the problem...sorry but that is life. Love your Q45 and it will love you back. I have a 95 Q45 with 187,000 miles and expect to have it go at least 300,000 miles. Great car.

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