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-   -   Thottle body noises / flooded? (https://www.rx8club.com/series-i-trouble-shooting-95/thottle-body-noises-flooded-256112/)

frenchnz 12-10-2014 12:32 AM

Thottle body noises / flooded?
 
Moved the car ( 06 manual )and stopped it - not been an issue previously!! However next day no start so assumed flooded. Previously no starting issues and has new coils and plugs and leads 3000 kms ago. Followed the deflood protocols with no joy. Removed the plugs they were wet and pretty mucky - a fair bit of carbon. Cleaned them and purged the engine with plugs out, foot hard down etc. Replaced plugs still no start.
Whilst around the front of the car I noticed a high pitch squeal ( almost like a quiet alarm noise ) it seemed to becoming from the throttle body housing. Investigating using a metal rod I could also hear a clicking noise as well from the same area.
I read that they do make noises but I am now worried that there is an issue with the throttle body rather than flooded.
Before I recharged the battery and use a second car hooked up or jump start using a tow anybody got experience or advice?
Thanks

frenchnz 12-11-2014 03:12 PM

Okay still not running.
Update is : Follwed all the suggested deflood techniques including fuse removal, spark plugs out, disconnect of fuel pump connection, etc. Does not even sound like wanting to catch.
removed the plugs again and they are damp again, so dried them and decided to check they are actually firing. When tested all spark but the colour of the spark was quite yellow ( I was expecting a blue flash) but they are functioning. The replacement coils a few 1000 kms ago were C types fitted with new leads. Plugs are NKG. As now previous problems starting I assume this is not the issue.
The only thing left is a push / bump start or last resort a tow start or should I just preserve with previous.
Any advice from experience owners please?

RIWWP 12-11-2014 03:14 PM

A throttle body problem will stall the car (or put it into limp mode or peg the revs to max) after it's started, but will not affect the initial start. There is plenty of air post-throttle body in the manifolds to get the engine started

Have you verified that you are getting spark? I assume by "wet" that you are getting fuel. But no mention of if you are getting spark.

frenchnz 12-11-2014 09:30 PM

tried to close this thread twice already.
So a very quick post.
Use the oil in the bottom ( leading ) plug hole technique. Add a few ml via the plug hole while the plugs are out.
Solved the problem in less than 5 mins.
The previous methods had washed out the oil and the was no seal so no compression.
Restarted - 1st very smoky and brief, then gradually ran for longer, third was stable took up to 3,000rpm, then a drive.
Thanks for all the previous posters on various sites. The Mazda guide says add oil via the vacuum plug but this is way easier especially if you already have the spark plugs out.


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