Question about 2005 Dodge Grand Caravan
I've seen 2 things that cause a noise like this in those vans. The first has nothing to do with the lifters, but the exhaust. The exhaust manifold to head bolts will back out a bit and make noise. The first time I heard it, I swore up and down it was lifters and tore the whole motor apart to find out there was nothing wrong with them. When I say I tore the whole motor apart I mean like, the freakin heads have to come off. This is easy to check when it's cold. Just go around to all the bolts with a little ratchet or something and see if they need to be snugged up. There is no exhaust manifold gaskets on that motor so if they're loose, once you tighten them they're fixed. Also check the manifold to manifold crossover pipe above the transmission. Normally this is louder than a lifter tap, but you never know. Just feel around it for hot air while it's running. The second cause that I know of for this noise is the camshaft. The lobes become pitted and as the rollers on the lifters go across the damaged area, it makes noise. If this is the case you get Kit A (thats a short block). According to chrysler, the camshaft is not a srviceable part in the 3.3 and 3.8L engines. You can check for this by removing the upper and lower intake manifolds and peeking down between the heads as you have someone slowly crank the motor over by hand. You should be able to catch a glimpse of the lobes through some of the broken lookin' holes in the block (maybe). I doubt that it's actually a lifter. There's no adjustment on chrysler 3.3 and 3.8L's and in 10 years I've never seen ONE that was bad. If it were mine, I'd check for ehaust leaks and if I don't find any I'd turn the radio up. As far as I can tell there aren't any side effects of the pitted camshaft other than noise besides the 1 I saw that casued a misfire.
Posted on Apr 15, 2009
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Posted on Jan 02, 2017
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