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Old 11-20-2013, 11:08 PM
marlow1 marlow1 is offline
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Default ticking noise, not exhaust manifold

Hello,

Have a trouble with my 04 dodge ram 1500 4x4 4.7L automatic truck. It makes a loud ticking noise from the engine area when I start up the truck. It must be approx. 38 degrees or colder or no noise. If it is warmer than it sounds fine. The noise continues till the truck has warmed up enough for the thermostat to open. Doesn't matter if the truck is in gear or neutral. Just has to be cold out. If I remove the serpentine belt, no more noise. It does have a new water pump, alternator, pwr steering pump, thermal fan clutch and serp belt. The sound reminds me of the noise a spray paint can makes when you shake it. Any ideas would be helpful. Key points: must me colder than approx 38 degrees or no noise, and noise goes away when serp belt removed.

thanks for your help.
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Old 11-21-2013, 12:16 AM
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starquestbd22 starquestbd22 is offline
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Have you checked all the belt tensioners? I can't remember for certain but I think there are two of them. They should spin freely, easily, and quietly. If they are course or gritty feeling, only spin briefly before stopping, or loud then they made need replacing.
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Old 11-21-2013, 01:39 AM
marlow1 marlow1 is offline
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yep, forgot to mention that when i replaced all the parts and serp belt, put on new tensionser.
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Old 11-21-2013, 06:49 PM
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My truck has a sound like the hemi tick. Has always had that problem once was a vacuum leak. never had a problem yet and i run the immortal crap out of mine.
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Old 11-21-2013, 10:36 PM
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There's a second pulley. Like the tensioner, but without the tension...
Most likely it's one of your pulleys. Pull the belt off, roll it with a bit of pressure on it.

Of course it could be a bad new part... Hate when that happens, but it's not unheard of. I've even seen where someone used a tad too much RTV and ended up with the water pump ticking on the RTV... I personally never use the stuff.
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Old 11-29-2013, 02:43 PM
JimCash JimCash is offline
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or it could be a sticky valve, these engines gum up badly for some reason. Im combating the same symptom in mine and after much hunting and trying to eliminate (hoping to GOD it wasnt) it is. On mine its one of the two back cylinders on the drivers side that is sticking and making the ticking noise until it warms up. You can kinda tell by watching your RPM gauge and "feeling" the truck run. While its sticking, it will have a slight vibration and fluxuation in RPM, as soon as it warms up and stops. it goes smooth and steady. if thats you. well. youre in the same boat as I.
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