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The mkiv Supra Owners Club

Help car not running right


blackdrift

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Right

 

Gave my car a good clean last night (including under the engine bay) and was carefull not to get any electrical bits wet, took for a drive for around 30mins fine no problem, leave it over night, go to start it in the morning and it is running like a bag of S*it.

 

Its got a slight missfire that you can hear on idle and notice/hear whilst driving. i have taken a part the apexi air filter and all the pipes leading to the inlet manifold and no sign of water or anything.

 

I have no engine warning light so cant get a fault code and have left it in the hot sun all day.

 

Any help verry much welcome as i dont even know if i should realy be driving it still

 

Cheers carl

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Sounds like you have got water into the plugs and it's now not running on all cylinders. Remove engine cover and blow out any water around the plugs and coil packs/leads with compressed air. If NA, also makes sure the distributor and connections are dry, a quick spray with WD40 will also help.

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  • 4 months later...

Same happened to me this weekend. I read this and dreaded the thought of having to go to all that trouble and then find a compressor on top!!!

 

Anyway, needed to go out last night so took the Supra and after about 20 mins driving the juddering and missfires started getting less frequent. So I decided to keep driving and after another 10-20 minutes the car was its usual torque-y self.

 

JustGav scared me by saying that it would not evaporate over time but I assume with that heat, the water had to once the engine was running at temperature.

 

As I said, Just and update;)

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