Top mechanic unveils simple fix for speedometer issue which 'happens to all cars’
Road users may be able to solve a vital car safety problem with a homemade fix, warns leading car mechanic Scotty Kilmer.
A top car mechanic has revealed a simple fix for a common speedometer problem which could hit every petrol and diesel driver in the UK and abroad.
Leading mechanic Scotty Kilmer stressed that speedometers will usually jump up when a car is started but the needle moving too high could be an issue.
If the needle jumps above 2,000 RPM’s on start-up it could indicate a major problem with the vehicle's throttle body which may require immediate repairs.
However, motorists can avoid paying expensive repair costs by following a simple DIY tip from their driveways.
Speaking on his YouTube channel, Scotty said: “Now this happens to all cars. You start it up and it idles a little faster.
“Now all cars when they are ice cold and you start them, they are supposed to idle a little faster to warm the engine up.
“But they are not supposed to idle up to 2,000 RPMs or more. That's too fast. That often happens because your throttle plate is sticking and needs cleaning.
“Basically you take this air duct off and you spray clean the throttle with spray cleaner.
“You don’t have to do it very often. Maybe once every year or once every couple of years the carbon builds up and needs cleaning. Easy job, anybody can do it.”
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The throttle body consists of a tube and a pivoting valve (butterfly) which turns to allow more air into the engine.
Motorists are “essentially controlling the flow of air into the engine” when they press down on the accelerator pedal.
However, Scotty warned road users must ensure they have the right materials in place before pulling pieces out of their car.
He previously added: “You want to make sure you use the right cleaners for doing it. Get your throttle body and air intake cleaner and start to clean it.
“Now do this on a cold engine because you don't want to have any flames or anything. When it's cold nothing is going to happen.
“Then start spraying all the crap out and you also want to push it with your fingers so you can get inside and clean. And also have a rag to wipe it all clean.
“When you use the throttle cleaner let it air dry for 15 minutes or so, so it gets all the vapours out.”
