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99 EX won't start....quick ?.....

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Old 12-05-2017, 06:00 AM   #1
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Default 99 EX won't start....quick ?.....

Hi, We took the thermostat out, now it won't turn over, is that why? nothing else was changed and it started and ran fine right before this.....thanks....
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Old 12-05-2017, 06:57 AM   #2
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Default Re: 99 EX won't start....quick ?.....

It won't crank, or it cranks but won't start? In the latter case, check the ground wires on the thermostat housing.
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Old 12-05-2017, 07:43 AM   #3
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Default Re: 99 EX won't start....quick ?.....

ecu ground wire missing.
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Old 12-05-2017, 08:02 AM   #4
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Default Re: 99 EX won't start....quick ?.....

Quote:
Originally Posted by tony_2018 View Post
ecu ground wire missing.

what??
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Old 12-05-2017, 09:41 AM   #5
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Default Re: 99 EX won't start....quick ?.....

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Originally Posted by mk378 View Post
It won't crank, or it cranks but won't start? In the latter case, check the ground wires on the thermostat housing.
Check what he said. Ground wireS, on the t-stat housing. Google it if you dont know what it is.
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Old 12-05-2017, 09:43 AM   #6
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Default Re: 99 EX won't start....quick ?.....

There should be 3 or 4 small black wires that come together into a single lug connected to a bolt on the thermostat housing. Those wires ground the ECU system. If it is not connected, the car will crank but not start.
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Old 12-05-2017, 10:26 AM   #7
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Default Re: 99 EX won't start....quick ?.....

It won't evan crank now, but i will try to get that bolt on the thermostat housing........
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Old 12-05-2017, 10:51 AM   #8
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Default Re: 99 EX won't start....quick ?.....

If it doesn't crank, that's a different problem. Check that you didn't pull the wire off of the starter by accident. If the starter makes noise but doesn't turn, check that the engine is not seized.
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Old 12-05-2017, 11:57 AM   #9
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Default Re: 99 EX won't start....quick ?.....

its NOT rom having the thermostat out tho right??
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Old 12-05-2017, 12:24 PM   #10
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Default Re: 99 EX won't start....quick ?.....

No. Taking the thermostat out doesn't really help anything though.

I assume it has been overheating, which is why I suggest checking that the engine is not seized or hydro-locked by turning it by hand with a socket on the crank bolt.
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Old 12-05-2017, 05:08 PM   #11
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Default Re: 99 EX won't start....quick ?.....

It was the starter ground......i took it off, sanded it with sandpaper put it back on and it started right up......thanks fellas.
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Old 12-07-2017, 04:09 AM   #12
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Default Re: 99 EX won't start....quick ?.....

Starter doesn't have a ground wire, it grounds through the starter chassis
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Old 12-07-2017, 04:44 AM   #13
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Default Re: 99 EX won't start....quick ?.....

Umm, it has a screw on it that goes to a ground and thats what it was was a corroded terminal.......
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