Reliant Fox Noise

2005 Reliant Fox Problem

CarReliant Fox 1.6 auto petrol Dynamic
OwnerDesmo man
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My Renault 1.6 petrol scenic Dynamic. When I start the car a noise that is similar to a clapped out old diesel comes from the timing side of the engine, ( the right hand side as you sit behind the wheel )The engine runs for a few seconds and then stops. When I start it again it is quite normal, no noise at all. There are no warning lights on, it does not run hot and performance is not affected. This does not happen every time I start the car
Problem Category
Engine, Cooling System & Drivetrain

Solution 1
1/4drive | Auto Insider | Since: Jun 2011 | Posts: 25 | Fixes: 1847 | View Garage
Suggested Solution

Really needs a tech to listen to it but check the crankshaft pulley for twist.
These days they're called harmonic ballancers and can fail producing some odd noises.

Posted on Tuesday 5th of December 2017
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Solution 2
whittingehame | Legend | Since: Oct 2009 | Posts: 444 | Fixes: 11830 | View Garage
Suggested Solution

t Answer: The problem is the camshaft dephaser pulley. This pulley is part of the variable valve timing system on your engine. Once the engine revs get above a certain threshold, a solenoid valve opens and allows oil to flow to the dephaser pulley. the oil pressure works against vanes inside the pulley and rotates the outer part of the pulley, this in turn alters the engines valve timing giving the engine more power at higher revs. The problem is that once the engine revs drop down, a locking device should engage inside the pulley. The locking device fails and allows the pulley to move when you start the engine, hence the rattling noise. Because of the excessive amount of movement generated during start up the locking device engages, so when you restart the engine the noise is no longer evident. This is a common problem on the meganes and renault spent approx 4.5 million pounds on a solution to this problem ! A modified pulley was produced, and the engine management ecu needs reprogramming when the new pulley is fitted.

Posted on Tuesday 5th of December 2017
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