3.9 ENGINE NOISE
#1
3.9 ENGINE NOISE
Hello,
I did a search and did not find any answers that quite fit my problem. My 99 3.9 has a noise that sounds a lot like a diesel. It starts about 10 seconds after staring it, but goes away after it is fully warmed up. Not the ticking sound described elsewhere. My local wrench thinks it is "piston slap". Has anyone had or heard of this problem? What is the fix? Thanks in advance for any input.
I did a search and did not find any answers that quite fit my problem. My 99 3.9 has a noise that sounds a lot like a diesel. It starts about 10 seconds after staring it, but goes away after it is fully warmed up. Not the ticking sound described elsewhere. My local wrench thinks it is "piston slap". Has anyone had or heard of this problem? What is the fix? Thanks in advance for any input.
#4
RE: 3.9 ENGINE NOISE
I guess I should mention that the timing chain and gears a nd the tensioner have been replaced. Tha tensioner was bad. I'am going to take it back to the garage on friday to see if he can isolate it. He is talking a possible tear down but I wanted to get some input from you guys before we went there.
#7
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#8
RE: 3.9 ENGINE NOISE
Here is an update on this. Noise is coming from the lower area. Engine is out and pan is coming off. Question is after fixing this, what if any upgrades would you guys recommend while the engine is apart? I was thinking new oil pump, maybe lifters if the top end has to come apart. But what kind/brand? Any other suggestions? May as well do it now. Thanks.
#10
RE: 3.9 ENGINE NOISE
ORIGINAL: YOOPER96
Here is an update on this. Noise is coming from the lower area. Engine is out and pan is coming off. Question is after fixing this, what if any upgrades would you guys recommend while the engine is apart? I was thinking new oil pump, maybe lifters if the top end has to come apart. But what kind/brand? Any other suggestions? May as well do it now. Thanks.
Here is an update on this. Noise is coming from the lower area. Engine is out and pan is coming off. Question is after fixing this, what if any upgrades would you guys recommend while the engine is apart? I was thinking new oil pump, maybe lifters if the top end has to come apart. But what kind/brand? Any other suggestions? May as well do it now. Thanks.
since its only a 3.9. I would just put a new oil pump/water pump, timing chain. and anything else while your in there. but I wouldnt put any performance parts on it though.