My oil pressure warning light on my Honda Accord 96 goes on when the engine is idle, what is the problem?

I have an accord 96 that has 100,000kms on it. had an oil change recently.



A few days after this oil change, I had an overheat and after this overheat, the oil pressure warning light started acting eratically.



First, after a cold start, the light does not turn on but after the engine warms up, the light flashes. The problem is, while revving the engine, the light goes off and immediately goes on again when the engine is idle.



To address my original problem, mechanics informed me that they would change the oil sending unit, change thermostat valve and thermostat switch.



After this, the problem was still the same (light goes off with revving). They recommended a general overhaul for the reason that the engine had so much sludge and they blamed the problem on the engine flush that was included during the change oil.



Now, i really dont know what to do next. General overhaul is too expensive for my budget.. Any tips?

Thanks very much!
My oil pressure warning light on my Honda Accord 96 goes on when the engine is idle, what is the problem?
the first and obvious question is--have you checked the oil level recently? I've seen drain bolts leak on Hondas if you don't change the washer for the plug and you could legitimately have a low oil condition. so thats the first thing to do.



then, if the oil is full, have your technician put an oil pressure gauge on the car to run a pressure test. That will tell you if the problem is a mechanical one (oil pump) or an electrical one (sending unit/gauge). Your description sounds like a mechanical problem with the oil pump. If the car does have low oil pressure, then the next thing to do is to have the oil pan removed to check the oil pick up for the oil pump. If it is clogged they can clean it. If not, then you'll have to change the pump.



accords are not known to generate a lot of sludge unless the oil is never changed. the engine flushes rarely provide any value.



hope that helps
My oil pressure warning light on my Honda Accord 96 goes on when the engine is idle, what is the problem?
Your oil pump is going bad. what is happening it is not pumping enough oil at idle and triggering your light. an easy way to check is get an oil pressure gauge, hook it up at make sure, this can have disasterous effects on your engine if not taken care of IMMEDIETLY.
Honda's are not known for sludge unless you don't change the oil at all.

Does the car have oil in it?

Could be the pump going bad...or the sending unit may not be reading correctly...or as simple as it wasn't wired correctly.

We had one that was triggered by the e-brake and just had to rewire it.

Sounds like the oil pump though and if it is and its not fixed its a good way to blow up a motor when it eventually freezes up.