anyone with the dodge 4.7 have problems running a ph16? I changed oil and filter and suddenly have a pressure drop at idle---previously used a purolator classic without trouble after HG replacement... no problems until this oil/filter change
dodge 4.7 fram problem?
- Thread starter joel95ex
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A friend of mine has a 2001 Grand Cherokee with the 4.7L. They've always used PH16s & never had any problems. Are you using a different oil or different viscosity this time?
Hope you figure out what it is! What if you just changed the filter & topped up the lost oil? That's what I would try first. That's the easiest/cheapest thing to try first.
Try just changing the filter before the sending unit to see for sure.
Put an oil pressure gauge on it and report the readings. Anything else is a guess and could end up wasting money, or worse.
My 4.7 Dakota was showing an oil pressure light after a remote start and 10 minute run, scaring the @#%$ out of me. Turned out to be failed sending unit.
I had 3 of them...never a filter problem with Fram.
Most likely a failed sending unit...
HOWEVER...
That was the exact symptom I had 25 years ago (on two different occasions) with Fram PH series filters that drove me away from Fram forever until the Ultra came out. On cutting the filters, I found the media had collapsed into a wad all around the center tube, effectively sending everything through the bypass and knocking 14 PSI off the engine's delivered oil pressure (oil filter downstream of the relief/regulator valve).
HOWEVER...
That was the exact symptom I had 25 years ago (on two different occasions) with Fram PH series filters that drove me away from Fram forever until the Ultra came out. On cutting the filters, I found the media had collapsed into a wad all around the center tube, effectively sending everything through the bypass and knocking 14 PSI off the engine's delivered oil pressure (oil filter downstream of the relief/regulator valve).
Is the black bypass valve on the newer Frams the same material as the white, or just different in color?
I hope there is a real answer in this thread, as it always seems to be hit the filter maker as the culprit, and then nothing is said after. There have been several like that in the past year or so. But then the rumor floats around forever, even becoming true to some people.
I hope there is a real answer in this thread, as it always seems to be hit the filter maker as the culprit, and then nothing is said after. There have been several like that in the past year or so. But then the rumor floats around forever, even becoming true to some people.
Originally Posted By: joel95ex
anyone with the dodge 4.7 have problems running a ph16? I changed oil and filter and suddenly have a pressure drop at idle---previously used a purolator classic without trouble after HG replacement... no problems until this oil/filter change
Is the oil pressure sending unit before or after the oil filter on this Dodge?
anyone with the dodge 4.7 have problems running a ph16? I changed oil and filter and suddenly have a pressure drop at idle---previously used a purolator classic without trouble after HG replacement... no problems until this oil/filter change
Is the oil pressure sending unit before or after the oil filter on this Dodge?
Originally Posted By: dlundblad
I have just over 4k on my PH16. No issues whatsoever even on my picky Jeep.
The PH16 worked very well this summer on my picky Jeep also. There is nothing inherently bad about the filter that should cause you a problem, although it is possible you got a bad one. Since filters are so cheap I'd try changing that first and save the other one for later use if you deem it not to be the culprit.
I have just over 4k on my PH16. No issues whatsoever even on my picky Jeep.
The PH16 worked very well this summer on my picky Jeep also. There is nothing inherently bad about the filter that should cause you a problem, although it is possible you got a bad one. Since filters are so cheap I'd try changing that first and save the other one for later use if you deem it not to be the culprit.
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