9 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHOil Pressure Guage Question
Reported repair
Replace sending unit and the problem is gone
Reported resolution
1
Reported fixes
0
Unsuccessful attempts
1
Discussions
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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that report a fix
1
1 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
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Reported fix · Original poster
I replaced the sending unit and the problem is gone.
Leading evidence: 'Replace sending unit and the problem is gone' (1 discussions report resolution; 0 report an unsuccessful attempt). Across 1 matching discussions, the most frequently mentioned possible cause is 'gone' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Clean contacts' (1 discussions). For that action, 1 discussions report a resolution and 0 report an unsuccessful attempt. The most frequently reported fix is 'Clean contacts', supported by resolution reports in 1 discussions. These are forum reports and suggestions, not a confirmed diagnosis.
Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that report a fix
1
Discussions that contain suggestions
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Reported fix
Try cleaning the contacts with a sone sand paper it worked for me...
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
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Reported cause · Original poster
I replaced the sending unit and the problem is gone.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that suspect a cause
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Suspected cause · Original poster
Unless there is a break in the wire, I am going to suspect the sending unit is wigging out!
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
9 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
0 acknowledgements have no verified action link; they do not establish a repair result.
Generation: 20261027T044418Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
The oil pressure guage on my '02 Cab tends to be erratic at times fluctuating wildly then acting normal. The today, I got a "indicator failure" for the oil pressure guage in my obc display and noticed that the pressure was at zero. Then the guage went back up to close to 5 again extinguishing the message in the OBC. It did this several times over about a half an hour period. Does this sound liek the sending unit failing?
The actual oil light has not come on, but this is still bothersome. I am in an area at the moment where there is no dealer. I don't think the engine has lost oil pressure to zero then mysteriously got it back. It would either make pressure or not.
Does this sound like a sender?
Thanks,
Tony
Yes, sending unit is bad. I had this repaired about a month ago. part is like $60, install is ~2hours. Dealer dinged me for $375, warranty picked it up. Not an uncommon problem.
+1
start with the simple - cheap repair......
though we had a bad oil pressure relief valve spring break recently
LINK
Still start at the sending unit with cleaning.... the replacing.... then look further
GL and post your findings
I have a date with an Indy on July 2nd to do mine and he told me it will be an hour labour at $105 bucks (CAN). Not sure about the part cost but $75 CAN here or there would be about right considering the exchange rate.
I just tried cleaning the contacts with with emory cloth and that made no real difference. Sometimes it will idle showing 3 bars then it wil just start jumping up and down like a loose connection. Unless there is a break in the wire, I am going to suspect the sending unit is wigging out! I have never seen a sender on a car that has two connectors, one for the oil pressure light and the other for the guage if that is in fact what the two wires are for!
I will order the switch from one of the vendors on this forum and follow up with the results.
Thanks,
Tony
I replaced the sending unit and the problem is gone.
You have to have patience and work by feel, but I didn't have to modify any tool. I did remove the right rear wheel and heat shield in order to break loose the sending unit as I couldn't get enough leverage reaching through the a/c hoses.
I now have 2.5-3 bar at idle when hot and 4-4.5 bar at highway speeds and no fluctuating needle.
Thanks for the information.
Tony
This is a source reference. Confirm exact model applicability in the original material.
