No warning, how can this be?
TECH Addict
Joined: Mar 2013
Posts: 2,628
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Just keep in mind the factory seals are notorious for leaking even with the intake tightened properly. Best solution is seal the cowling, test it with a water hose and if possible replace the intake gaskets with Felpros. The factory gaskets are sheet.
Enjoy knowing your starter aint gonna break off or block crack rod break etc. Plus the fact if it doesn't completely break it the 1st time it happens it weakens and can do hidden damage that bites yer azz later.
Enjoy knowing your starter aint gonna break off or block crack rod break etc. Plus the fact if it doesn't completely break it the 1st time it happens it weakens and can do hidden damage that bites yer azz later.
Launching!
Joined: Mar 2011
Posts: 200
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From: wi
Check to see if you have an injector leaking fuel slowly. This will also cause a hydraulic cylinder lock and cause a no crank no start.. hook a fuel gage to fuel rail and pull all the plus out. After a couple days see which cyl has fuel in.
Thread Starter
Staging Lane
Joined: Mar 2013
Posts: 57
Likes: 0
From: Originally from Long Island NY, Resides now in NC
Have a good look inside the valve covers. Any signs of metal on metal contact, rubbing or wear?
I think you should do a leak-down AND compression test. Inspect the rocker arms, valve springs and push rods thoroughly. Any excessive wear to the rocker arm to valve tip? Any on the valve tip?
How many miles on this car? Any modifications?
I think you should do a leak-down AND compression test. Inspect the rocker arms, valve springs and push rods thoroughly. Any excessive wear to the rocker arm to valve tip? Any on the valve tip?
How many miles on this car? Any modifications?
157K on odom. No, blemishes on the valve cover, passenger side.
I have a video of it, but not sure how to actually post it. Hold on, I'll try to send a link.
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Verdad Gallardo TECH Addict
Joined: Mar 2013
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Usually fuel is thin enough to blow past the rings unless its a huge amount. I've already had PCM's that failed and tuned the injectors on full tilt that customers started without damage. Water on the other hand is very dense and will break things into pieces quickly.
TECH Addict
Joined: Mar 2013
Posts: 2,628
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HerHawk:
From your first post, you had the problem (this noise) changed the starter (it was cracked) and then it was OK-you drove the car a few days.
Then the noise came back.
It sounds to me that this noise comes and goes randomly.
Auto or stick car? Auto car, it may have a cracked flex plate.
Curious, where in LI were you from?
From your first post, you had the problem (this noise) changed the starter (it was cracked) and then it was OK-you drove the car a few days.
Then the noise came back.
It sounds to me that this noise comes and goes randomly.
Auto or stick car? Auto car, it may have a cracked flex plate.
Curious, where in LI were you from?
Thread Starter
Staging Lane
Joined: Mar 2013
Posts: 57
Likes: 0
From: Originally from Long Island NY, Resides now in NC
Paul,
I am originally from Holbrook, St. James area. I graduated from Sachem. My husband is from Kings Park. ;-)
The car, Firehawk is an automatic.
Yes, The very first time it made that clunking noise we brought it to the shop, the mechanics said the starter had broke away off the bolts.
New starter was replaced and the flex plate and flywheel are in great shape. I saw portions of the flywheel, and no teeth were broken.
Brought the car home, ran fabulous, then it sat for two days, then noise came back.
I am originally from Holbrook, St. James area. I graduated from Sachem. My husband is from Kings Park. ;-)
The car, Firehawk is an automatic.
Yes, The very first time it made that clunking noise we brought it to the shop, the mechanics said the starter had broke away off the bolts.
New starter was replaced and the flex plate and flywheel are in great shape. I saw portions of the flywheel, and no teeth were broken.
Brought the car home, ran fabulous, then it sat for two days, then noise came back.
Well I'll sum it up for you, windshield cowling leaks water onto intake manifold. Intake manifold bolts are loose. Water leaks past intake gaskets and into the engine. You go to start the engine and slug a cylinder with water. STARTER BREAKS OFF. Starter gets replaced and no one ever considers why it broke off in the 1st place......... Good Luck
Converter bolt? check to see if they are all there.
Paul,
I am originally from Holbrook, St. James area. I graduated from Sachem. My husband is from Kings Park. ;-)
The car, Firehawk is an automatic.
Yes, The very first time it made that clunking noise we brought it to the shop, the mechanics said the starter had broke away off the bolts.
New starter was replaced and the flex plate and flywheel are in great shape. I saw portions of the flywheel, and no teeth were broken.
Brought the car home, ran fabulous, then it sat for two days, then noise came back.
I am originally from Holbrook, St. James area. I graduated from Sachem. My husband is from Kings Park. ;-)
The car, Firehawk is an automatic.
Yes, The very first time it made that clunking noise we brought it to the shop, the mechanics said the starter had broke away off the bolts.
New starter was replaced and the flex plate and flywheel are in great shape. I saw portions of the flywheel, and no teeth were broken.
Brought the car home, ran fabulous, then it sat for two days, then noise came back.
I thought about the flex plate because sometimes damage to it is at the hub making it hard to see unless it's removed. The sound it makes could come and go as the torque converter moves in & out of the pump.
Did you try the thing with holding the valve cover in place by hand?
The fact that the sound comes & goes is what has me stumped. If it was an engine bearing, the sound would never go away.
Thread Starter
Staging Lane
Joined: Mar 2013
Posts: 57
Likes: 0
From: Originally from Long Island NY, Resides now in NC
Haven't gone outside yet to check the valve cover. It's FREEZING here in NC. LOL
My husband was born in Queens NY.
He just bought a compression tester, so I think he will do that too once it warms up a bit.
Thanks so much for all your inputs.
Let me ask you something,
if it was a bad valve or piston or ring or something, wouldn't it have still made the sound without the valve cover on?
My husband was born in Queens NY.
He just bought a compression tester, so I think he will do that too once it warms up a bit.
Thanks so much for all your inputs.
Let me ask you something,
if it was a bad valve or piston or ring or something, wouldn't it have still made the sound without the valve cover on?
A timing chain can stretch and "slap" against the cover or block. It doesn't really sound like that's the problem but it is a thought.
Frequently when a repair is made it temporarily moves or changes something affecting the problem then after a while it comes back.
I agree with Paul Bell that you should check the flew plate. If it was turned by hand to inspect it that could have taken it out of contact with what ever it was hitting the with driving it moved back.
One last suggestion, try to find a good reputable shop that knows LS engines. A shop might be great on mant things but if they don't know LS engines they can get lost.
Good luck, lets us know what you discover.
Frequently when a repair is made it temporarily moves or changes something affecting the problem then after a while it comes back.
I agree with Paul Bell that you should check the flew plate. If it was turned by hand to inspect it that could have taken it out of contact with what ever it was hitting the with driving it moved back.
One last suggestion, try to find a good reputable shop that knows LS engines. A shop might be great on mant things but if they don't know LS engines they can get lost.
Good luck, lets us know what you discover.