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Does it idle good? If not it could be a crack in the air intake hose. Its a good idea to check the hose very carefully anyway... Bend the hose slightly and look for cracks or holes in the accordion like area of the hose. If that's not the problem you could check the sparkplugs and distributor and of...

Does tightening/loosening the belt reduce the sound - when my engine made the noise i found out that the lock nut on the belt tensioner near the alternator was not tight enough - so after i made the adjustment it would just loosen up on its own and start making the noise.

Which belt do you think makes the noise - the alternator belt or the power steering belt - if you isolate that maybe sombody can point to the right direction...

I dont know how much help it will be - but have you tried putting the stock intake setup back on - just to see if the MAF is dead or if its something else.... Also there is a procedure to test MAF in the online manual - Page F1-160 I had similar symptoms once when i was cleaning out the filter - the...

It is very hard to measure it at the lights - everything is kinda sealed and no exposed metal contacts - i kinda stuck the probe in the gap between the bulb and the holder and i could only measure the high beam - it was 10.88

Here's the reading on my 94 MX3 precidia 1.6 with stock headlights and wiring

First i measured the V on the battery terminals and then turned on the headlights and took a reading and turned off the headlights and took a reading

Nothing on : 12.51
HL on : 11.9
HL off : 12.4 and climbing up

I think i have one lying around somewhere - i recently bought an airhose from ebay and it came with the MAF - i dont know if it works though - too lazy/not enuf free time to plug it in and check ...

You probably already checked this - but just to make sure - have you checked the drive belt condition/tension - maybe if the belt is damaged or too tight - that might lead to an irregular load when the compressor turns on ...

My 94 1.6L DOHC had the same problem - It made this high pitched whining noise whenever the engine was not warm. I replaced both serpentine belts and the problem was solved. The procedures for belt adjustment is in the online manual pages B1 -006 & 007 - I am sure there is a procedure somewhere ...

I guess you can try cleaning the throttle body and the Idle air control to see if that makes a difference. Anyone know of a way to clean the throttle body without taking it apart (someone told me to spray a cleaner into the throttle body while the engine is running and open the throttle - i dont kno...

Does it fluctuate when the engine is cold - if no then try changing the coolant temp sensor - its about $20 - IMO it made a lot of difference in my car. Also someone told me that cleaning the throttle body would help - i havent gotten around to it because i cant find throttle body gasket anywhere...

Hey thanx a lot guys - I really appreciate your help on this.

I have a similar problem with my 94 DOHC ATX - if its on P or N then the engine idles fine at 750 RPM - if i put it on any other gear then the idle goes down to 500 or sometimes even lower. It used to fluctuate a lot - but after replacing the air hose, the coolant temparature sensor, spark plugs, pl...

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Hi, Could anybody give me the dimensions of the spare tire tie down bolt in the trunk. This is the bolt that goes thru one of the holes in the spare tire wheel and and bolts it to the wheel well so it doesnt move around while driving. Mine is missing and i am gonna try and find a replacement in a ha...