Mazda 323 Astina 1994. My car has progressively gotten worse over the past 2 weeks on start up. Until now it doesn’t seem to want to start properly at all. When the key is in ignition the revs are irrational between 500-3000, jumping up and down. The sound it makes is a jittery choking noise as it revs up and down. It feels as though it constantly wants to stall.
As for the White smoke… This has become a common feature on start up of the car but only on the first use of the day… Whether that would be in the morning afternoon or evening. It doesn’t smell sweet and lasts for a minute or so. I havent notice any difference in the coolant level. I did fill up the engine oil recently as the light was showing on the dash… The level of the engine oil is between the F and L lines. Non of the fluids/liquids seem to be odd eg mixed oil and water, milky etc. any ideas as to what this might be would be much appreciated!
The rev’s moving up and down should be related to the IAC – Idle Air Control or a vacuum leak. Would have an impact on start up as well.
The white smoke, maybe a hair line crack in the head or intake and or gasket failure. Since it is so small at this point it might be a good idea to try some “Bar’s Stop Leak”. I have had great success with small internal leaks such as this.
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A new set of spark plugs would also be a good idea. If using OEM plugs, swap them out every two years or switch over to double platnium plugs for longer use.
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