Lexus IS 250 misfire problems

Filed Jun 10, 2019 · Engine · 70,000 miles · NJ

Engine consumes about a quart of oil every thousand miles. Tail pipes full of carbon. Sometimes runs rough

Filed Jul 27, 2018 · Engine · 40,000 miles · CA

The engine could stall in the middle of driving because of misfire. My lexus 250 only 40k mileage and always do proper maintenance to the engine every 3000 mile. I do research that lexus is 250 cause carbon build up because of the wrong design of the direct injection. Here's the youtube link: https://www.youtube.com/watch?v=ytquqflawr8. I brought the car to lexus dealer, they won't admitted, instead they blame me using a wrong fuel. Before I used 91octane shell, then I switch to 91octane chevron. Still has the problem. They should recall for this matter, because it's about safety and the engine could suddenly stall in the middle of driving.

Filed Aug 14, 2017 · Engine · 110 miles · NY

The car was shaking and would not excelerate over 40mph. It was brought in to lexus of pohanka in december of 2016. They performed a top engine clean. The car started having the same issues in the beginning of 2017. I called lexus customer service and opened a case as I was told there was a recall on a manufacturing defect of the pistons. I had paid $1500.00 for the work performed. I was told a should have received a letter in regard to this problem. Lexus was calling it a customer support program. I never received the letter but repeatedly ask le us to reimburse me and solve the piston misfire. I have all of my emails to support my case. Lexus stopped replying to them. The car at this point is still shaking and the engine light is flashing. We have been instructed by lexus in the past not to drive when light is flashing. At this time I do not know where to turn. Any help would be greatly appreciated. I am aware that many of these models and others have had the work performed or new engines.

Filed Mar 23, 2016 · Driver assistance, Engine · 130,000 miles · OH

Vsc light, check engine light, traction control light all came on at the same time. Po303 cylinder 3 misfire detected. Have saw online many people complaining of the same problem. Engine is shaky during idle or shaky when its cold. Previous owned a 2009 lexus is250 and had the same problem. Heard of some people saying lexus dealers took cars in and had problem fixed as recall. Not finding any recalls for my car. My mechanic says its a good running car, but something doesn't feel right.

Filed Mar 9, 2016 · Engine · 95,000 miles · CA

Tl* the contact owns a 2008 lexus is 250. The contact stated that the vehicle was not experiencing any failure before being taken to the dealer for a manufacturer recall regarding the engine misfiring. The dealer had the vehicle for longer than a week. When the vehicle was driven by the contact after the repairs, it overheated and stalled. The vehicle was towed back to the dealer for diagnostic testing. The recall remedy did not repair the condition. The manufacturer was notified. The federal safety agency campaign number was unknown. The approximate failure mileage was 95,000.

Filed Dec 10, 2015 · Engine · 144,000 miles · GA

Tl* the contact owns a 2006 lexus is 250. While driving approximately 30 MPH, the check engine warning indicator illuminated. The vehicle was taken to the dealer where it was diagnosed that the engine misfired due to carbon build up. The vehicle was not repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 144,000.

Filed Feb 15, 2014 · Driver assistance, Engine · 91,000 miles · CA

Check engine, vsc, traction lights comes on as vehicle comes to a stop with a rough idle, and at times exhibits a temporary loss of power intermittently, while the vehicle is mobile/rolling. Lexus sent out a tsib letter to us owners for similar symptoms with possible diagnostic trouble codes(dtc): p0300-p0306. Further, according to lexus corp. "the check engine light may illuminate for reasons of unrelated condition." lexus corporation suspects the cause of problem is carbon deposit accumulation in the intake valves and a replacement of piston ring set and or pistons may be indicated. If this is what's occurring inside the engine and is inherent to is250 models only ,then it would seem to a reasonable person there is a design and potential safety flaw in these vehicle models. Also, because of this design flaw, my vehicle is now having catalytic failure and a what sounds like a rattle during a cold crank start of the vehicle. However, when a vehicle is taken to a dealer, the lexus dealers are quick to dismiss the problem by the claims that the symptoms are not replicable enough for them to verify the problem. The temporary loss of power may one day cause the driver to have a serious accident should the steering wheel lockup or should the problem happen during hill ascends, which may cause the vehicle to roll back into traffic or off the main road. Why is lexus corporation not making this issue a safety recall, and rather, just treating it as a concern nature. I would beseech the traffic safety board to please look into this matter as to avoid any injury or worse, a loss of innocent life. This is my first lexus vehicle and it has become a very disappointing experience.

Filed Sep 5, 2013 · Acceleration, Engine · 73,000 miles · FL

September 20, 2012 I experienced my first misfire issue with my 2008 lexus is 250. As I accelerated to approx 65 MPH to entire a busy highway on ramp, I lost all acceleration in my vehicle. As this happened, I had the check engine light flashing, my check vsc indicator displaying, and my traction control light illuminating. I called lexus, they advised that the car needed be towed in and the began to run the codes that were tripped. It was determined that I had extreme carbon build up in the engine, which was causing my engine to misfire. They did the "cleaning repair" which involved taking the engine apart, and sending a bunch of parts to a machine shop where they cleaned the heads & pistons. In total, I was without my car for over a month! Fast forward to september 3, 2013. I now have 73,000 miles on my car, and the same thing happened again this evening as I was accelerating to approx 40 MPH. This time I was on a busy 5 lane road, and lost all acceleration and had to essentially "coast" across 5 lanes of rush hour traffic to get to safety on the shoulder of the road. I immediately called lexus, and once again they advised me that my car needed to be towed in. Today my service advisor contacted me to inform me that once again I have carbon build up in my engine and that it is misfiring. Unfortunately now, my car is beyond the 70,000 mile drive train warranty. He is working with corporate to see what my next steps are, but I refuse to pay for these repairs, and I do not feel that I should have to since it is essentially a repeat malfunction of an existing issue! It should also be noted that my is has been into the dealership 3x for engine noise/rough start up since I had the repairs completed last year. Every time, I was told that they logged the issue, but were unable to replicate it.

Filed Mar 18, 2013 · Driver assistance, Engine · 89,653 miles · CA

I took my vehicle in to a lexus dealership on march 15, 2013 because the engine has powered down while driving & the check engine and vsc indicators came on simultaneously, the car is also idling hard. I had the vehicle inspected and it was found to misfire by the technicians at the dealership. I was told that this is a massive recall and that my parts will not come in for eight months. I am afraid to drive my vehicle which is why I brought it to the dealership and do not understand why the company will not loan me a vehicle while this manufacturing defect is corrected.

Filed Nov 28, 2012 · Acceleration, Engine · 65,000 miles · HI

As I was attempting to accelerate, the vsc light and check engine light came on, the car lost power, would not accelerate, and the engine started misfiring.