Now the engine cranks but does not start?

RICK87121

MEMBER
2003 LEXUS ES 300
6 CYL
16,700 MILES

Had a bad starter replaced it but I tried to take off the relay and broke the top casing. Now the car cranks but doesn't start. I bypassed relay now cranks and no start. Also check engine light does not come on and windows doesn't work. Did I ruin my relay and is it multi-functional?

3 Replies

KEN L

MASTER CERTIFIED MECHANIC
47,640 POSTS

There are two fuses associated with the starter system that need to be checked, the first is AM2 30 amp in the under-hood relay fuse panel and the other is AM1 5-amp fuse in the left side of the dash fuse panel.

Here is a guide to help and thew starter wiring diagrams so you can see how the system works:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.

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Tuesday, September 6th, 2022 AT 6:11 PM

RICK87121

MEMBER
2 POSTS

I have changed the blown fuse for the starting system, but it is still cranking and not starting. Before the starter went out, I didn't have any issues. It always started on the first try. Any ideas?

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Thursday, September 8th, 2022 AT 1:40 PM

KEN L

MASTER CERTIFIED MECHANIC
47,640 POSTS

Will the engine run if you use starting fluid? Can you hear the fuel pump run in the tank for about 5 seconds if you turn the key on but don't crank the engine over?

This guide can help:

https://www.2carpros.com/articles/car-not-running-advanced

Please go over this guide and report back.

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Friday, September 9th, 2022 AT 5:31 PM