Questions & Answers for: cold knock

2003 Ford Explorer is knocking and blowing cold air when I turn the knob to the heat My car is blowing cold air out and a knocking. I need to know the problem. When I turn the knob to the cold air, ...

...58dxc is making a loud noise My carrier 58dxc is making a loud knocking noise and blowing out cold air. When I switch the thermostat to air the knocking stops and the unit works fine. It's only ...

cold knock maybe piston what is the cure ? Yes, this is usually loose pistons. Boring the engine and replacing pistons would fix it. But, this won't hurt anything and lots of vehicles do it. Unless it

...Cold start knock '96 VW Golf GL with 2.0 motor. Cold start knock lasts for about 30 seconds, and then goes away. No oil consumption noted, and the noise only happens after sitting over night. ...

...cold if its at the top end its pistion slap if its at the bottem end(of your engine) its a crank shaft bearing. with out going into extream detail, a ting sound at the top is a pistion slap.... ...

I hear knocking when motor runing WHEN COLD THEN GOES AWAY WHEN WARM. THATS NORMAL FORGED PISTONS SLOP WHEN COLD.I HAVE 01 SILVERADO WITH 390,000 RUNS GREAT 21MPG 40TO50 PSI OIL PRESSURE KNOCKS WHEN ...

cold day It has a knock when started up on a cold day but goes away when it warms up. Have noticed loss in power and check engine light comes on after 5-10 miles of driving. could be a knock sensor or

...cold to start, yes, water pump dead) PS/AC/ALT dead too. still knock> listen at valve cover. coming from there. is the timing belt is old over 60k thy all shard and some knock load hitting that ...

2003 Mercury Mountaineer is all of a sudden blowing cold air and knocking. I JUST bought a 2003 Mountaineer. Drove it for about an 1hr, on and off. Heater was working fine, then it just starting ...

knock in cold motor clatter or knock on cold days usually quits after warm up,doesn't hurt motor performance,doesn't always knock Not really an issue as I have already said in the other thread. Sounds