Please HELP. CAN THIS CAR BE SAVED. Car stalls upon acceleration and RPMs increase then decrease

AMCRUMB

MEMBER
2000 LEXUS RX 300
121,000 MILES

The car began******** like I had air in the gas when I accelerated, then it got worse and the rpms would fluctuate from high to back down and I was accelerating and then it wouldn't move. I turned car off to reset and car accelerated but then I push gas and it would not go. I added fuel injector to gas and let it run a bit and then noticed a loud high pitched buzzing noise. Any help would be appreciated, not sure I should get it towed to the repair shop or will I can cause more damage to the vehicle.
Thanks!

4 Replies

RIVERMIKERAT

MECHANIC
6,110 POSTS

Proper towing won't cause any damage.

Check the fuel pressure. If low, check the fuel filter and pump. Check for spark.

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Monday, December 5th, 2011 AT 2:34 AM

OXAMANDUHX

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11 POSTS

Check MAF sensor, its more of a common problem on the RX300, most of the time it will not set a code.

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Wednesday, February 8th, 2012 AT 9:10 PM

RIVERMIKERAT

MECHANIC
6,110 POSTS

A MAF Sensor issue will set a soft code, which isn't going to cause the CEL to light.

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Thursday, February 9th, 2012 AT 4:17 AM

OXAMANDUHX

MEMBER
11 POSTS

Sometimes is will, sometimes it won't! There are often times where is can be the idle air control motor as well, sometimes it won't set the CEL either. It is best to go to a place where they can check the fuel trims on the scan tool. You would have one rare Lexus if the fuel pump is bad. If one of the coil packs are bad, it would not only set the check engine light, it would flash. It is possible that the VVT-i sensors are bad in the engine as well.

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Thursday, February 9th, 2012 AT 1:41 PM