#1
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Possible effects of a broken timing chain guide
2004 Quest SL - 200,000 miles
I had lots of ticking coming from the motor in the area of the timing chain. I replaced the timing chain tensioner which alleviated the problem for a little while, but now that sound is back. I'm beginning to think the timing chain guides have broken. What are some possible negative effects of having the guides broken? Thanks! |
#2
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The timing chain can become loose and jump teeth on the gears. could potentially damage the engine.
__________________
Nissan Master certified Technician
Hybrid and GTR certified EV certified ASE Master Certified. |
#3
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I haven't heard of any issues of timing guides "breaking" on VQ engines. On the 3.5's and 4.0's, there have been problems with the upper chains cutting into the upper tensioner's plastic "faces" or "feet" (the part that sits on the end of the tensioner plunger and contacts the chain), but this issue creates a loud "whine" type noise, not a ticking. I wonder if you could have a bad accessory drive bearing or idler bearing at the front of the engine? It might be worth removing the serpentine belt and running the engine to see if the noise is still present.
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#4
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I wonder if this issue could have anything to do with my other issue: Camshaft Sensor Issues with stalling
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#5
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Quote:
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#6
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It will look like this picture. The plunger will be contacting the back of the guide instead of the plastic part that extends off of the back of the guide. |
#7
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Could something like this be causing my quest to stall while driving it?
It stalled twice today while driving down the road - I'm getting quite irritated... |
Tags |
broken, chain, effects, guide, timing |
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