New oil pump still burning oil NO CEL
#1
10-02-2018, 09:46 AM
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New oil pump still burning oil NO CEL
my truck is a 99 f250 super duty with the 5.4l.
i was having a problem in which I thought was oil pump failure (oil burning and dummy pressure gauge acting up) I just replaced the pump and re did the timing. I’m pretty disappointed to say it didn’t really “fix” my problem as the truck is still smoking and does not like operating once it warms up ( smokes but has good power and acceleration leaving my driveway but throws a fit after driving down the road for a minute or two) can’t get her to throw any codes. I had one p0355 that boiled down to being a separated wire to COP and haven’t had any since. I’ve never had it overheat, no coolant loss. I’m stumped and just want to get her running right again
i was having a problem in which I thought was oil pump failure (oil burning and dummy pressure gauge acting up) I just replaced the pump and re did the timing. I’m pretty disappointed to say it didn’t really “fix” my problem as the truck is still smoking and does not like operating once it warms up ( smokes but has good power and acceleration leaving my driveway but throws a fit after driving down the road for a minute or two) can’t get her to throw any codes. I had one p0355 that boiled down to being a separated wire to COP and haven’t had any since. I’ve never had it overheat, no coolant loss. I’m stumped and just want to get her running right again
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#2
10-02-2018, 10:25 AM
my truck is a 99 f250 super duty with the 5.4l.
i was having a problem in which I thought was oil pump failure (oil burning and dummy pressure gauge acting up) I just replaced the pump and re did the timing. I’m pretty disappointed to say it didn’t really “fix” my problem as the truck is still smoking and does not like operating once it warms up ( smokes but has good power and acceleration leaving my driveway but throws a fit after driving down the road for a minute or two) can’t get her to throw any codes. I had one p0355 that boiled down to being a separated wire to COP and haven’t had any since. I’ve never had it overheat, no coolant loss. I’m stumped and just want to get her running right again
i was having a problem in which I thought was oil pump failure (oil burning and dummy pressure gauge acting up) I just replaced the pump and re did the timing. I’m pretty disappointed to say it didn’t really “fix” my problem as the truck is still smoking and does not like operating once it warms up ( smokes but has good power and acceleration leaving my driveway but throws a fit after driving down the road for a minute or two) can’t get her to throw any codes. I had one p0355 that boiled down to being a separated wire to COP and haven’t had any since. I’ve never had it overheat, no coolant loss. I’m stumped and just want to get her running right again
#3
10-02-2018, 10:41 AM
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Burning oil even after replacing the oil pump, would not stop it from burning oil. Bad rings bad valve seals. How many miles on the engine? Did you do a compression test? What do you mean by it throws a fit after a minute or two down the road? Could it be that you did not get the timing correct when you re-did that?
#4
10-02-2018, 10:51 AM
...oil burning and dummy pressure gauge acting up.....
#7
10-02-2018, 04:19 PM
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#8
10-02-2018, 04:30 PM
As I originally stated to him rings seals compression test. Putting a video on YouTube might give an idea whether or not the rough running could be do to bad plugs / coils. He would have to be dumping volumes of oil through the cylinders to cause it to run badly.
#9
10-02-2018, 04:52 PM
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#11
10-02-2018, 07:22 PM
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True. But to check it right he would need to do a compression test and a leak down test. And If you pull the heads for a valve Job you might as well rebuild it with the miles and oil pump history.
Also, he should be tracking down the oil burning issue before worrying about the rough running. He will probably find the cause of the rough running while tracking the oil issue.
Paul
Also, he should be tracking down the oil burning issue before worrying about the rough running. He will probably find the cause of the rough running while tracking the oil issue.
Paul
#12
10-04-2018, 12:03 PM
The 5.4's that i had in my van and expedition were bad for burning oil. At about 140k miles both of them went from burning a quart every 5k miles to burning about 5-6 quarts every 5k miles. I put another 100k on each of them before i traded them in and never had any issues besides burning oil. Never any smoke, loss of power or fuel mileage. I just quit worrying about it.
#13
10-16-2018, 11:17 AM
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