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Old 05-08-2019, 05:59 PM   #1
2Lodges
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Default 93 240 classic **** box wont start issue

My son drove home from work and the next morning it would not start.
It tries to start while the starter in engaged then dies when off the starter.
What we tried and checked.
It runs a little when gas is squirted in the manifold.
Fuel pressure is good.
Spark at the plugs.
checked the crank sensor, it reads about 180 ohms.
Changed the power stage on the ignition.
Put a oscilloscope on the crank sensor and it has pulses.
No codes stored by the computer.
I hate to just throw parts at it.
Any ideas?
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Old 05-08-2019, 06:56 PM   #2
ZVOLV
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Do you have injector pulse? A noid light, test lamp, scope all work to check this.
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Old 05-08-2019, 07:04 PM   #3
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How is the timing belt? Is the distributor and cam turning? Are they in alignment with the crankshaft?
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Old 05-08-2019, 07:07 PM   #4
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^^^^Yep. Take the oil cap off and make sure the cam is turning. Check compression.

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Old 05-09-2019, 12:20 AM   #5
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Thanks for the ideas. The distributor and the cam are turning.
I put a timing light on it and it flashed but was hard to see any timing.
I'll try that again in less sunshine. I went ahead and tried a coil and dist. cap and rotor I had with no change.
When I did open the oil cap the oil was light brown and creamy like a mocha, probably a blown head gasket.
This car is a little to far gone to spend any more money on.
He is probably going to turn it in to a wrecking yard.
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Old 05-09-2019, 12:43 AM   #6
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Is the ignition switch powering everything it should in both start and run key positions?
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Old 05-09-2019, 06:50 AM   #7
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Timing belt with teeth sheered out due to age...... with that cam improperly timed, you have not a prayer of the engine running. As Dave said, do a static timing check with engine cranked around to 0* TDC at crank and see if the cam pulley is in the right position.

Fuel, air, and properly timed spark....... makes "fire in the hole"
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Old 05-09-2019, 10:55 AM   #8
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it's a 93 classic? And you're going to give it to the wrecking yard?
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Old 05-09-2019, 01:04 PM   #9
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Yes it is a "Classic".
I suppose we could try to sell it.
At over 400K miles, a bad engine and looking like crap i bet now one would want it.
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Old 05-09-2019, 01:06 PM   #10
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No becaue it's a classic edition. Someone will want it. Mines over 400k and people at least act like they want it.
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Old 05-09-2019, 01:08 PM   #11
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Btw it's probably time to do a compression test and see what you are working with as far as the engine is concerned.
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Old 05-09-2019, 01:46 PM   #12
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People want the classic, it's limited. If it were any other 240, sure, do what you want. If it were a 740, crush it even if it runs good.
But not a classic, man....
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Old 05-09-2019, 04:14 PM   #13
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Yea, we should try to sell it first. Maybe I'll try to sell a car on Ebay for the first time.
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Old 05-10-2019, 01:36 AM   #14
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Sounds like blown HG & timing off
You don't want to run it with contaminated oil.



So it's, paint faded/banged up/rusty crusty ?
Color ?
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Old 05-10-2019, 02:07 AM   #15
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Check crankshaft position sensor
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Old 05-10-2019, 10:59 AM   #16
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Where are you located? Head gasket isn't a big deal. No need to scrap the car.
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Old 05-10-2019, 11:15 AM   #17
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Quote:
Originally Posted by 2Lodges View Post
...
Fuel pressure is good.
...
This one statement of all of yours caught my eye. Can you add to this some?
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Old 05-10-2019, 11:36 AM   #18
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Quote:
Originally Posted by cleanflametrap View Post
This one statement of all of yours caught my eye. Can you add to this some?
Let's hope it's not the old "It's good, but no I didn't check it" routine.
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Old 05-10-2019, 03:58 PM   #19
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Quote:
Originally Posted by intothelabyrinth View Post
Let's hope it's not the old "It's good, but no I didn't check it" routine.
Many givens are ill-gotten.

#1 assertion "The fuse is good"

#2 assertion "I have fuel at the rail"
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Old 05-17-2019, 03:16 AM   #20
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Quote:
Originally Posted by 2Lodges View Post
When I did open the oil cap the oil was light brown and creamy like a mocha, probably a blown head gasket.

smart move to inspect lets hope you didn't run motor on coffee with half n half for motor oil...

am I right ?
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