Question about 1993 Mazda 929

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A/C blows fuse in engine compartment

Just bought the car. It has original A/C and did not blow cold so I had it converted to R-134 and tested. It blows a fuse in the engine compartment (had a 20amp in it when I bought it and should have been a 15amp) with the A/C charged up and testing. There was a relay under the wiper reservoir that was getting hot and it was replaced. This was all done and reported to me by a mechanic, not me.
The mechanic thought the compressor clutch was grounding out and causing the fuse to blow, but thought I would get a second opinion before changing out the compressor, dryer, etc.
I saw on another post there may be other relays under the passenger dash?

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  • Mazda Master
  • 2,432 Answers

Connect a amp meter in line to the compressor clutch cable, operate air con and check amps, should not above 12 amps .

Posted on Apr 04, 2017

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: My 1992 Mx5 Miata just wont start!!

remove the key from the ignition get a 21 mm socket and wrench and try to turn the crankshaft clockwise to see if it moves if it moves try to push start the car push the car to about 1 to 2 miles an hour with the key in the on position all dash lights on eg. check engine, air bag, etc. put in second gear and drop the clutch if it starts it's likly you have a bad starter

Posted on Nov 13, 2008

jingB
  • 19 Answers

SOURCE: electrical issues (2 or 3) with Mazda Tribute 2002

hello there, there is a way to check if the alternator works, just start the engine and run it at idle for a minute or so just to get the engine warmed up. while the engine is running, try to remove the positive terminal cable from the battery (note: no lights, radio, or any accessories operating). the alternator should be sufficiently providing power to the engine. if it dies down the charging might be weak. another way is purchase a digital multimeter and setting it to dc voltage testing. put the tester prongs on the correct terminal( positive to red positive and negative to black negative) test the voltage prior to starting. usually it shall read 12. 3 or a tad higher. remove the tester prongs from the battery terminal and start the engine. then place it back on. the reading shall read 14V plus without any load. sometimes it might read 15V w/c is usually over for certain cars. then turn on all accessories: headlights, aircondition/heater and etc. if the reading on the tester indicates 12.8V and above 13V your charging system is ok.(all this test is on engine idle)

For the battery, my experience is that 2 years of battery duty is quite good already. unfortunately, during these span of duty the battery might give a 12V reading but its strength is not enough to sustain the load. the voltage of the battery is the physical attribute so to speak and ampere is the power or strength of the battery.

for your accessories that died, I think something tripped when you jump started it. but the accessories are easily traceble. I think what's important is keeping the engine in tip top condition and won't let you down during hard times.

hope some of this helps you.

Posted on May 04, 2009

yotaguy
  • 232 Answers

SOURCE: Mazda Tribute Intermittent Starting problem

I can think of 2 possibles,it could be a bad battery cable or an intermitent short in the starter solenoid, check or have the battery cables and there connections on both ends first not only are they a cheaper fix but the problem you describe sounds like a current flow issue.Test them with or have them tested with an ohmmeter they should show o ohms resistance,and while not attributed to the problem I do not reccomend using Bosch spark plugs of any variety,the best plugs for any Japanese vehicle are NGK's,this comes from my personal experience with them and other techs that I have worked with.

Posted on May 09, 2009

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SOURCE: 2004 RX-8 Air Conditioning Blowing Hot

The A/C control is fixing to go out. the whole modual replaced and the problem will be fixed...

Posted on Jun 23, 2009

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SOURCE: location of blower motor relay

better late than never....
The blower relay is one of two identical relays next to the clutch pedal above the fuse panel. I just had to replace mine (1996 Protege DX). I switched the two relays and now the blower works fine. Not sure what the other relay was for... but the car doesn't seem to miss it yet! The relays have H270 panted on the side of the black plastic covers. You have to pull down hard to get the relay off the clip it is fastened to, then unplug the four prong connector. Good luck finding one. The books all call for a 6 prong relay. I am going to find one in a junk yard rather than calling Mazda. I hope this helps... I searched all over the internet and couldn't find any answers so I figured I better post mine here...

Posted on Jun 26, 2010

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