Engine does not start

DAUNTE

MEMBER
1993 LEXUS GS 300
3.0L
6 CYL
TURBO
2WD
AUTOMATIC
123,867 MILES

Hi, my car will crank but not turn over and there is no power in the interior but the hazard lights will turn on when the button is pressed. I checked the spark plugs and they are good, I got a new battery, and I can smell fuel when I crank the car. My dad thinks it is something to do with a cable that was disconnected when we tried to take of the plenum to change the intake manifold gasket. I hope someone can help because I don’t know what to do.

1 Reply

JACOBANDNICKOLAS

MECHANIC
109,755 POSTS

Hi,

If you were smelling gas when it wouldn't start, it sounds like you lost spark to the plugs.

First, I need you to check for spark. Here is a link that explains how it's done:

https://www.2carpros.com/articles/how-to-test-an-ignition-system

Now, I don't know if there were any indicators of trouble before, but if it lost spark and it happened suddenly, it could be a faulty crankshaft position sensor. Take a look through this link and let me know if it mirrors what you have experienced:

https://www.2carpros.com/articles/symptoms-of-a-bad-crankshaft-sensor

Let me know. Also, if the battery has been disconnected, chances are there are no diagnostic trouble codes stored anymore. However, here is a link that explains how to check for them just in case:

https://www.2carpros.com/articles/lexus-trouble-codes-obd1-1990-1995-code-retrieval-procedure

Let me know what you find or if you have other questions.

Take care,
Joe