Skip the auto shop - Our mechanics make house calls

Q: My car doesn't start -1993 Lexus ES300

asked by on

My car started to shake and bounce and lost power. prior to this happening i was feeling the water reservoir every 2-3 days because there would be no water in it. after losing power it shortly stalled and shut off. Now it doesn't turn over at all. i had someone look at it and they noticed i was missing 3 main sensors under the hood and said that could be the reason?. another mechanic said it might be the valves? another said a blown head gasket?
My car has an automatic transmission.

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 the coolant reservoir every 2-3 days and now the engine won’t turn over. The coolant loss should have been diagnosed and repaired. At this point, removing the spark plugs and trying to turn the engine over is next step. If the engine is hydrostatically locked due to a blown head gasket, coolant will come out of a spark plug hole(s). This can be an expensive and time consuming repair. Proper diagnoses needs to be performed. I recommend having your vehicle’s starting problem diagnosed and repaired by a certified technician, such as one from YourMechanic.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: 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...

Q: When I try to start the truck dies right away

Hi there. From the description you have provided - your vehicle starts and dies right away - could be multiple possibilities. A fuel pressure test could help identify whether, it is a fuel delivery problem. It could be a low...

Q: Truck had a lot of smoke coming out the day before and it kept shutting off. Now wont start.

Hi there. Depends on what type of smoke was coming from the engine and where it was coming from. If the smoke was coming from the exhaust pipe, then either fuel or oil has entered into the exhaust system through...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...