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No start what is wrong

Customer Question
No start what is wrong
Submitted: 1 year ago.Category: Chevy
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Answered in 3 hours by:
10/1/2016
Chevy Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago
kalamykid
kalamykid, Shop Owner/ Tech
Category: Chevy
Satisfied Customers: 4,780
Experience: I HAVE OWNED MY OWN SHOP FOR OVER THREE YEARS. I HAVE THE TOOLS AND SOFTWARE TO ANSWERE ALMOST ANY Q
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Can you tell me what happened before it stopped running please? Have you had the battery disconnected?

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Customer reply replied 1 year ago
I have had the battery disconnect ed I was driving down the road and it backfired and blow out black smoke and died and I haven't been able to get it started since
Chevy Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago

The first thing you will need to do is check the fuel pressure. Do you have a fuel pressure gauge to check it with?

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Customer reply replied 1 year ago
I checked it to day it was56/62 ps
Customer reply replied 1 year ago
steady at that
Customer reply replied 1 year ago
The engine just got rebuilt 2000 miles ago
Customer reply replied 1 year ago
New starter new fuel pump new fuel pressure sensors Nucor new control module pretty much everything new
Customer reply replied 1 year ago
New EGR valve new camshaft position sensor distributor and crank shaft positioner has been changed
Chevy Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago

Did you use ac delco cap and rotor button on this truck or a cheaper aftermarket set?

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Customer reply replied 1 year ago
A more expensive one that's not made out of plastic
Customer reply replied 1 year ago
This truck did run with the distributor that is in it
Customer reply replied 1 year ago
I even went as far as putting in a new idle air control valve on the spider and changing the spider from the from another one
Customer reply replied 1 year ago
It started out reading codes that said that I was burning too much fuel air flow mixture and I started changing sensors and then the black smoke and died and I never been able to get it started again
Chevy Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago

When you checked the fuel pressure, did it hold pressure or did it bleed off fast?

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Customer reply replied 1 year ago
I am going to be performing a pressure test on the cylinders tomorrow morning
Customer reply replied 1 year ago
It seemed that it was it stayed steady
Customer reply replied 1 year ago
When the engine was turned when the engine was turned in the off position that's what I got over pressure reading of 55
Customer reply replied 1 year ago
When I took out the spark plugs this morning they had gasoline on at least five of the cylinders if that's anything that will help you
Customer reply replied 1 year ago
It's got me so f****** puzzled that I'm about to lose my mind
Chevy Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago

Have you checked for spark out of the coil as well as at the spark plugs?

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Customer reply replied 1 year ago
I got as far as finding out there spark coming out of the coil I wasn't able to check the spark on the spark plugs it got dark
Customer reply replied 1 year ago
I started a compression test this morning after I took the plugs out but the pressure tester I was using would say that there was only 30 pounds of pressure coming out of 160 pounds coming out of another one that was kind of all the way around the motor but then whenever I got home with the new pressure tester I was getting average of about 120 to 140 pounds
Customer reply replied 1 year ago
I couldn't really see the new tester by the plug so I was going to wait until tomorrow to do a lot better examination of the compression on the engine
Chevy Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago

Do you have an oreily's near you? If you do can you get an ac delco cap and rotor button? It sounds like you have a problem with the cap jumping spark to the wrong cylinders. I can not tell you how many times I have gotten bad caps from parts stores. One time I went through 12 caps and they all had a flaw in them and would jump spark through the plastic to the wrong cylinders. You will also need to unplug the icm and turn the engine over a few good ties to dry the cylinders out and then redo the comp test. You will also need to check to make sure that there is no gas in the oil. If there is any chance of gas in the oil, change it. Gas will make the oil not protect the bearings and just turning it over can damage the bearings.

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Customer reply replied 1 year ago
When I took the cap off I did see a burn on the center piece on the plastic and it felt like there might have been a crack there
Customer reply replied 1 year ago
It doesn't look like one from the outside but I felt the third you know whenever I felt the thing it felt like there might be a crowd little bitty quarter inch crack in that right by that a centerpiece
Chevy Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago

It is possible that the spark is going through the crack or impurfection and going to the metal shaft of the distributor and not out to the spark plugs.

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Customer reply replied 1 year ago
I don't really know I know that the bird is on the middle shift in the distributor cap and that's where the crap it feels like there's a little crack there inside the barn you can when you're rubbing it you can feel it
Customer reply replied 1 year ago
I'll pick up a new cap tomorrow do you think I needed rotor 2
Customer reply replied 1 year ago
The wires are about a year old but they've been sitting on the engine for a year without being started or anything this means just sitting in the garage
Chevy Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago

I would get both the cap and rotor button, just to make sure there is no problem there. Make sure to unplug the icm and turn the engine over a few times to dry out the cylinders and check for gas in the oil.

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Customer reply replied 1 year ago
Do you think an MSD cap and rotor is better than
Chevy Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago

As long as nothing has been chewing on the wires, they should be good.

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Chevy Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago

There is no reason to spend that kind of money on a cap and rotor button. A good ac delco cap and rotor button will be just fine.

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Customer reply replied 1 year ago
Okay I'll do that I'll talk to you tomorrow sometime
Chevy Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago

It is 1;30 am here, and I will be back online around 11 am. If you need me I will be happy to help you when I get back online. Do you have a digital volt meter and a test light in case we need to do some testing?

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Customer reply replied 1 year ago
I have a multimeter and a test light and if not we'll make one
Customer reply replied 1 year ago
You are an hour ahead of me it is 12:42 here
Chevy Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago

Chat with you tomorrow then.

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Customer reply replied 1 year ago
I just got done doing this compression test on a dry compression and wet compression number one is 90 number to is 125 number 3 is 120 number for is 120 number 5 is 100 number 675 number 7 is 120 and number 8 is 55 and that is consistent even with the wet test
Chevy Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago

I hate to say it but it looks like it has jumped time. Can you pull the cap off and bring cylinder 1 up on a compression stroke and see where the rotor button is pointing?

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Customer reply replied 1 year ago
It is pointing at the number 8 on the distributor and toward the number one plug
Chevy Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago

If you have the distributor cap off, the rotor button should be at about 7 oclock if cylinder one is at top dead center. That i if you are looking from the front of the truck back to the distributor.

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Chevy Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago

I am sorry, it should be at about 5 oclock.

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Customer reply replied 1 year ago
It is at about 5 o'clock
Chevy Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago

Can you grab the rotor button and turn it by hand?

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Customer reply replied 1 year ago
No
Chevy Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago

The comp test is way out of wack and the engine cannot run with such low and different numbers. If the timing is not off, then the lobes of the cam are worn, the rocker arms have come loose, the lifters have colapsed, or the valves are burnt.

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Customer reply replied 1 year ago
what do we do now
Customer reply replied 1 year ago
Does that mean I need a new engine or just a new cam and new valves how does this happen
Chevy Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago

The first thing I would do would be to pull the valve covers off and see if any of the rockers are loose. If they are all good, I would measure the amount of lift each rocker gets as the engine is turned over. See if they are all about the same.

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Chevy Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago

I can not say that you need a new engine but the heads will need to come off more then likely and a valve job done on them.

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Customer reply replied 1 year ago
How about the cam
Chevy Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago

Before you take to much apart you should take the valve covers off and measure the lift of each of the lifters and see if they are all about the same. If the rocker does not move much then the lobe on the cam is worn. Also check to see if the rockers are loose. You can have bent push rods.

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Customer reply replied 1 year ago
Okay I took the valve covers off and on the right side of the motor I found two little bitty looks like a ring of metal shaving inside the head there sitting down in there but that was the valves are I don't know what that is but hey we're going to commit to doing turning the engine over to see if he would burn to burn evenly
Customer reply replied 1 year ago
All the rocker arms look like they're pumping evenly the fourth one back on both sides of the motor is it don't look like it's pumping any oil out
Customer reply replied 1 year ago
how much oil is supposed to be coming out of these things
Chevy Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago

If they are set right and the engine is running, they can shoot oil about 6 feet. But you are not suppose to check it with the engine running or the starter turning the engine. You have to turn the crank by hand with a socket and ratchet.

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Chevy Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago

Can you send me a pic of the particles you found?

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Customer reply replied 1 year ago
All the lifters and rocker arms look like they are running about even or the same
Customer reply replied 1 year ago
They are all going up and down
Customer reply replied 1 year ago
I did notice that the fourth rocker arm back on both sides of the motor doesn't pump oil
Chevy Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago

So cylinder 3 and 4 have a lifter not pumping oil up to the rockers correct?

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Customer reply replied 1 year ago
that is correct
Customer reply replied 1 year ago
When I drain the oil after this had happened when the truck broke down I didn't see or feel any metal fragments in the oil
Customer reply replied 1 year ago
Did you get that picture that I had sent
Customer reply replied 1 year ago
I even took off the oil pan when I changed the timing chain and didn't see no metal fragments in there at all either
Chevy Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago

no I did not get any pics other than the one spark plug.

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Chevy Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago

Where did you find this at?

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Customer reply replied 1 year ago
When I took the valve cover off it was laying at the bottom inside the head there were two pieces like this
Customer reply replied 1 year ago
About was the number 3 is
Chevy Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago

Can you turn the engine by hand so that the 4th rocker on both sides is all the way down on the push rod side and see if the rocker is loose please?

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Customer reply replied 1 year ago
I can turn turn them they're not real tight but I can't go up and down
Chevy Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago

Are the others that loose?

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Customer reply replied 1 year ago
I believe they're all about the same
Chevy Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago

I hate to say it but it sounds like you have some burnt valves. The heads will need to come off and be checked.

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Satisfied Customers: 4,780
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