Question about Cars & Trucks
Please have this properly diagnosed before your engine is destroyed. It cannot survive long without oil pressure. If it has already sustained damage, low oil pressure is a symptom of a larger cause, like a bad main bearing or a rod bearing. In this case, running the engine will kill it and you'll be buying a new engine.
Then again, it might only be a bad sensor or a clogged oil passage. Not worth the risk unless you really know what you're doing.
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Posted on Jan 02, 2017
if it is electrical oil pressure sensor I would start there. The best way to see if you have a major problem is to use a mechanical oil pressure tester. Take off the oil pressure sensor and put the mechanical tester on. The tester should come with a Gage. If it comes within your trucks oil pressure range than all is fine and replace the sending unit and see if that don't help your problem.If the tester runs high then the oil pump is bad or your cam-bearings could be the problem. But with cam-bearings you would usually get a low reading.
Posted on Mar 14, 2009
The fuel pump on that model runs through the oil pressure switch so that if the truck looses oil pressure,It kills power to the fuel pump to prevent engine damage.you need to find the cause of the low oil pressure reading(possibly a bad oil switch).That would be the cheapest place to start,or have it checked with a mechanical gauge.Good luck,
Posted on Mar 30, 2009
While engine is running, open the cover where you add oil to engine and see if you see a good flow of oil, if good flow, could be as easy as replacing oil sending sensor. got to realize that if poor maintenance history your engine may not be building enough pressure at iddle to move your hydraulic operated valves, only when you rev it up it will pump enough to run smooth. if running engine too long, you may cause more damage to other engine components such as crankshaft and cam shaft bearings. if you can spare a few bucks, have a good mechanic check your oil pressure with a mechanical gauge. another cheap option is to replace oil pump. last resort if you love your truck as much as we do,replace engine or rebuild it. At 205,000 this is a normal symptom, other than timing chain problems, most engines don't make it that far. hope this helps!
Posted on Mar 01, 2010
You may want to hook up an external oil pressure gauge
to the engine to ease your mind. This would give you a regular number of the pressure. Compare it to the factory gauge in the dash. Those in dash gauges were not all that precise. If the engine is not having bearing noise I can see nothing to worry about.
Posted on Mar 16, 2010
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