Caravan/Voyager :: 2000 Dodge 3.3 Engine Noise At Idle And Under Low RPM Load
Aug 20, 2011
I have an engine noise on my 2000 Dodge Caravan with the 3.3 engine. It sounds a lot like the grinding of a rotating part. It occurs at start up, momentarily, then goes away. If I drop it in gear and start doing low speed maneuvering in the driveway, it comes back. If I turn on the AC it comes back. In all cases, the noise goes away at around 1200 rpm.
The noise occurs again, when I shut the engine down.The engine performs and runs smooth and normal otherwise. No stalling, stumbling, or bad gas mileage to report.
I can "feel" the noise with my hand, when I put my hand on the ac compressor bracket, or the intake manifold, or the valve cover. I've tried the listening through the stick method, and it seems to be coming from the front area of the engine. But I can't be sure. It is something internal. Let me describe:
I thought it was my AC compressor or clutch going bad. The fact that my AC had stopped working well, and was making jet engine noises at high rpm supported me decide this. I replaced the compressor. The AC works great now, and the jet engine noises went away. But the grinding noise is still there. As described.
I wishfully thought it was the belt tensioner or idler pulley. I replaced both of those. Noise still was there. I pulled off the serpentine belt, and started the engine. It made the noise, very briefly as it started, then went away completely. It made the noise again briefly as I shut the motor off. So it's still there without any of the accessories turning.
The noise is loud and obnoxious at idle when under load. It just can't be good. I've read theories about similar sounding problems, saying they could be loose timing chain, bad oil pump, slapping pistons, crank journals, flexplate/flywheels cracked.
I'm going to try doing an oil system flush, and then I'll change it out with a little thicker oil. See if that makes any difference in the noise. Currently I'm running 5w-30 Mobile 1. I think. I'll let you know if it changes anything. I'm also thinking I want to make a short video of the car idling and making the noise for my video camera. I'll post that on youtube and link it here.
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Dodge Grand Caravan 2000 3.0L
First, sometimes the engine began shuts off. When the drive up to the traffic lights. When sharply throw gas pedal. When the engine speed is less than 2000. If you release the gas pedal, you will see that the tachometer needle drops below 500 rpm and the engine stalls. This happened happened two or three days all right. And sometimes a day, 3-4 times shuts off. Then ringing under the hood.
Was the flywheel. I remove the transmission and replace the flywheel. More repair parking brake pedal. So it turns analyzed under the panel. I have a new problem. After repair. I driving my Dodge week. And once. After an overnight stay the machine, on morning the engine not start. I checked the spark. The spark is. I removed the fuel hose. and there is no pressure. Just a little bit of fuel.
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The second, is the one that I keep finding when I type in replacement splash guard.
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