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ES300

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Question
How to fix the wiring on my alternator?
Hello. The system is burning the wire connector due to the connection being weak and loose. The wire got hot and melted the first time due to a loose connection causing heat build up. You should also check the battery...
Question
AC making noise 3 for years
Hi, thanks for writing in. I'd be happy to provide my insight. The difference in price is usually a difference in warranty and whether the product is new or refurbished, or in some cases, used. Typically, parts on eBay and...
Question
Alternator belt got torn whilst driving and had new belt fixed but the car won't move on drive or reverse after few seconds drive
This is a sign of a faulty transmission control solenoid. Modern automatic transmissions use pressurized hydraulic fluid to change gears. Every time a gear change is required, the car's computer activates a transmission solenoid, which directs transmission fluid into the...
Question
rattling noise when turning on a.c. then later stops making noise
Hello there, many faults will cause a rattling noise when the AC is turned on in your 1997 Lexus ES300. The most common would be the belt tensioner, idler pulley, AC clutch, AC compressor, or the belt itself. When the...
Question
How do you determine when it is time to replace the rear shocks?
Hi there. As a former Lexus master technician I used the leak criteria guide provided by Lexus for the technicians to determine when to replace the shocks and struts. The guide had levels ranging from 1 (no leak) to 5...
Question
My car will start up but after. While while driving cuts off two or three trys it start back up why is this?
It is possible that you could have an issue with your ignition switch. The ignition switch is responsible for starting the engine and maintaining power to all the spark plugs. If the connection is lost even for a moment, this...
Question
I was wondering if an alternator in a 2003 Lexus ES300 can go in my 2002 Lexus EX300. The connectors are a little different.
Hello. If the connectors are different, then it is likely that the alternators are different. In some cases, the alternators may mount up similarly but will have different power outputs and capacities. Larger vehicles or vehicles with more accessories may...
Question
Small leak
Hi, thanks for writing in. It is possible that your oil pan bolts could be loose. The most likely cause of this issue would be a leaking valve cover gasket or oil pan gasket. I would recommend having our engine...
Question
My Lexus 2003 e300 runs fot10 minutes when I start it in the morning but then the rpms go down to zero and I have to drive with tw
Hi there. I've encountered this condition multiple times while working at the Lexus dealer. What I have found in these instances is that the idle air control valve is sticking. This valve is located under the throttle body, has a...
Question
Car starts up and cuts off after a while of driving
This may be likely related to a fuel pump issue or lack of fuel pressure. Low fuel pressure is something that can cause your car to struggle to idle or even stall when driving. This will also cause the Check...
Question
Car won't start after i changed both knock sensors and harnesses.
You can try to see if there are other codes stored in the computer. Usually, the connectors are different so you can't mix them up but that may be a possibility. If there are no new codes, make sure there...
Question
Stalling issue
A rough idle may be caused by many different things such as low fuel pressure, low voltage to the fuel injectors, dirty fuel injectors, a vacuum leak, a faulty Oxygen sensor or a dirty or failing idle air control valve....
Question
My car consumes fuel excessively
Hello there. Many faults could cause your vehicle to consume excessive fuel. The most common faults are a misfire condition, a bad mass airflow (MAF) sensor, a fuel leak, a vacuum leak, a faulty oxygen sensor, or an exhaust leak....
Question
I have a bad knock sensor. Is it worth replacing?
Hello. Yes, you are correct - the P0325 is indicative of a failed knock sensor (or the knock sensor wiring). I think it is a rare circumstance where you would not want to make this repair. It is straightforward and...
Question
Carbon canister making a loud hissing noise.
Hi there. The loud hissing noise could be caused by a split vacuum hose or a loose hose. Follow the hiss to make sure it is the canister and not a separate hose. The code stored for the Check Engine...
Question
I just installed a new battery, and now the gear shifter, windows, lights, and radio won't work
If 1) the battery is fully charged; 2) it was installed correctly (i.e., at no point in time were the positive and negative connections reversed damaging the powertrain control module [PCM]); and 3) the wiring was not damaged and none...
Question
What happens if I don't replace knock sensor?
The knock sensor on the engine is there to detect for an engine noise from pre ignition (pining) normally. This is so the computer can advance the ignition timing to the maximum it can without the engine pinging. This gives...
Question
I bent my rear sway bar pretty bad. Had it replaced, but the wheel is still a little bent. What else can be the problem?
Hi there. The rear wheel being out of alignment, could be the result of a bent strut assembly, a bent trailing/control arm, a bent bearing knuckle and/or bent rear subframe. Replacing components without diagnosis can be expensive and time consuming...
Question
My car doesn't start -1993 Lexus ES300
Hi there. Three main sensors missing cannot be a good thing but, your vehicle was apparently running without them. The valves are unlikely unless the timing belt broke. A head gasket issue is possible, considering you have been adding to...
Question
What do you think could be wrong?
Hi there: What you're describing appears to be a problem with the serpentine belt; which powers many of your vehicle's components including the alternator, power steering, and air conditioning systems. When the belt or the pulley's that turn the belt...

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