having electrical problems!
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Joined: Mar 2017
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From: Riverside, Alabama
having electrical problems!
I have a 2000 3.0 vin. code U with around 215.000 miles. The issues I'm having are i just replaced the timing chain and gears , but now I'm having an issue with low power , and it has a vibration sometimes at startup. No codes as of yet , but the reason i changed the timing gears and chain is because it had the high miles as well as it was acting like it was misfiring.
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Joined: Jul 2016
Posts: 2,022
Likes: 44
From: BC Canada
Check your camshaft synchronizer, they can be all shot to hell and still give no codes.
Clean the MAF sensor, use the special cleaner in the spray can.
Check your compression too, that high of miles, the valves are probably worn _ possible cause of the misfiring.
Compression on a new engine is at 170 to 175.
Still OK at 150 to 155.
Clean the MAF sensor, use the special cleaner in the spray can.
Check your compression too, that high of miles, the valves are probably worn _ possible cause of the misfiring.
Compression on a new engine is at 170 to 175.
Still OK at 150 to 155.
Welcome to the forum
Cold engine
Remove all spark plugs first
Check compression in all cylinders, write each one down
2000 3.0l Vulcan engine runs 9.3:1 compression ratio
Use the standard 18 multiplier, 15 for outside air pressure and 3 for mechanical compression
9.3 X 18 = 167.4 <<< so you should expect 160-170PSI result in each cylinder
If you live above 2,000ft elevation use 17 instead of 18
If your compression average is low, 130psi, then timing chain was not timed correctly
You will have to go back in
Do this first, or you will just be wasting time and money on non-fixes, confirm Good Compression and then you can move on
Cold engine
Remove all spark plugs first
Check compression in all cylinders, write each one down
2000 3.0l Vulcan engine runs 9.3:1 compression ratio
Use the standard 18 multiplier, 15 for outside air pressure and 3 for mechanical compression
9.3 X 18 = 167.4 <<< so you should expect 160-170PSI result in each cylinder
If you live above 2,000ft elevation use 17 instead of 18
If your compression average is low, 130psi, then timing chain was not timed correctly
You will have to go back in
Do this first, or you will just be wasting time and money on non-fixes, confirm Good Compression and then you can move on
Member
Joined: Jul 2016
Posts: 2,022
Likes: 44
From: BC Canada
A guy would have to be pretty careless to get the valve timing off on this simple engine.
Line up the timing marks on the sprocket gears and slip them in place, that's it. (woodruff keys are lined up too)
Maybe if number one was on exhaust (180 degrees out), it wouldn't run at all if that was the problem.
I suppose any thing is possible though.
Line up the timing marks on the sprocket gears and slip them in place, that's it. (woodruff keys are lined up too)
Maybe if number one was on exhaust (180 degrees out), it wouldn't run at all if that was the problem.
I suppose any thing is possible though.
There are "timing marks" and there are manufacturers stamp marks on Cam Gear, why they put them on the same side I will never know, I guess it is just cheaper
Seen wrong mark used more than once
Poster mentioned changing timing chain recently so..........
Compression test is black and white, bad or good, no maybes
Get it off the table or find out it is the problem
Seen wrong mark used more than once
Poster mentioned changing timing chain recently so..........
Compression test is black and white, bad or good, no maybes
Get it off the table or find out it is the problem
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