Passat (B5) :: 2000 - Oil Pressure Drops Whilst Engine Speed Increases?
Mar 17, 2010
My 2000 B5 1.8t began getting the Low Oil Pressure warning light over the winter, and has gotten progressively worse. I added a mechanical oil pressure gauge and I'm seeing about 20 psi on a cold engine at idle. If I rev to ~2500 the pressure DROPS to between 5 and 10 (and triggers the STOP! light).
I tried a bottle of autoRX, but probably too late- I could only run about 200 miles before the STOP! light wouldn't allow me to get out of the driveway.
What might cause the pressure to DROP as engine speed increases? a Clogged screen or worn pump possibly? It would be nice if it was something I could correct without pulling the engine (but I'm not expecting that).
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I recently had my 2002 1.8T in for clutch replacement at the dealer and they came back and said the crankshaft was bad ( the car was occasionally making noise when pushing the clutch in, they thought it was a throwout bearing) I took the car back to bring it back to an indie, and it is loud at idle and while accelerating (sounds like a chattering noise that gets faster as speed increases) It's now sitting in the parking lot. My question is, am I going to have to put in a whole new engine to fix this problem? can just a crankshaft be replaced?
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I have an 88 Chevy C1500. It started showing low oil pressure about a year ago and I went with a heavier oil and oil pressure go a bit better.
Just changed the oil and now, when I start the engine cold, I show normal oil pressure. As the engine temp increases, the oil pressure goes down. When engine is fully warm, oil pressure shows 0 and "check gauges" light comes on.
Decided to put even heavier oil in but guy at parts house said it was probably the sending unit, not a worn out engine. I tend to agree because I drove it more and never hear any ticking or valve noise. Too cheap to replace the sending unit.
From the symptoms above, does thus sound right? Could the sensor somehow fail as engine temperature increases? Everything I read says oil pump failure is very rare.
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2000 Ex 5.4 v8
Had 2 coils go bad last week. Got them replaced. Today I am on the turnpike doing 70 and my oil light comes on and oil pressure drops all the way. No engine noises and temp is OK so I coast to the next exit. Get off and go to the gas station in the corner. Turn the truck off...
Wait a few minutes, when I go turn it back on it wont start. The motor wont even turn. It just clicks.
I notice smoke coming from the wire that goes from the starter relay to the starter so my brother comes and gets me and we go to the nearest auto part store and buy a new relay.
Replace it and try to start it, same thing. Just clicks and smoke. My brother gets under the truck and taps the starter as I try to start it, no go. I am fearing the engine locked up. But no engine noises, clicks or clacks or anything. Battery is fine as well. Any thoughts on what else I can try?
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2015 F250 with 6r140 Transmission. I have 13 K miles on my truck. While pulling my Travel trailer up a hill the transmission kicks down thru the gears, which is fine, but as I crest the hill and in 2nd gear, the engine begins to rev up and the speed increases, the transmission will not automatically go into 3rd gear. I have tried to let up on the gas pedal, but it remains stuck in 2nd gear. I have to shift to manual and then put it in 3rd gear. Then it shifts up as it should. I have tried with the transmission in "TOW' and not in "TOW". I have even tried it in "Cruise Control". Ford dealership ran tests but could find no problem. However it was road tested without the trailer.
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1) Cleared the codes and restarted engine.
2) Replaced the spark plugs with new ones.
3) Old spark plugs were in good condition with no oil, no deposits and the electrodes in good condition.
4) Checked HT lead condition and found no corrosion, a tight fitting cap and no damage to cable.
5) Earthed the HT lead and have strong spark when engine turns over.
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7) Removed the fuel rail and extracted cylinder 3 injector.
8) Performed a visual inspection of injector with all looking good and no blockages at the jets.
9) Tested the injector on the bench using a 12V battery to ensure it opens and closes correctly.
10) Replaced the injector in the rail and turned the engine over to check for blockages, with all injectors operating.
11) Swapped cylinder 3 and 4 injectors (misfire still on cylinder 3, no change)
12) Inspected fuel and air connections and ensured no leaks.
13) Checked the engine oil condition with no evidence of water contamination (head gasket).
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Recently it feels like the transmission is 'hunting' drops a gear, picks up a gear when driving constant speed on flat roads. 2.0T with tiptronic. Additionally, very intermittent, the car will get a shimmy around 48-50 mph. feels more transmission related and it is not the tires since it is an intermittent issue.
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CEL does not come on / no codes
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I've taken it to my mechanic twice; the first time had the fuel filter replaced, the second time got new spark plugs, but it's still doing it. What else it might be?
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While driving today, 2006 Ford F-250 5.4 L V8 138,000 miles , I experienced a problem. Started with the truck acting as if it was running rough, possibly missing. This was approx. 10 Minutes after starting. Checked the dash, no warning indicators and all gauges were normal. Approx. 4 more miles, the oil pressure alarm signals and I see the oil gauge has dropped to zero. I pull over, turn off and check the oil. Oil is clean and at a normal level. I restart the truck and the oil pressure goes back to normal.
Rev the truck up while sitting there and after a few seconds i hear a knocking noise in the engine and oil pressure drops again. Call the tow truck, driver used to be a mechanic . He asks me to start it again and the same thing happens. If you start it and let it idle oil pressure seems to go up to normal with no engine noise. Finally get to the mechanic and he calls me later saying the oil pump and screen may need to be replaced or the engine may need to be replaced.
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This is a 2002 Toyota Camry 4cyl with 249157 miles. I drove it 140 miles to work, noticed no issues, parked it, and got back in after 10 hours. On the way back I noticed a noise that got louder the faster I went. It is independent of the engine revolutions (I put the car in neutral and "coasted"). The noise is completely dependent on the speed of my forward movement.
So I put the car up and in gear and around 25/30 mph, the sound shows up and gets worse as the speed increases. It does not get worse in turns. And it is very consistent- not clunking or clicking, just a steady sounds almost like strong wind over an object. I replaced the wheel bearings in both front wheel assemblies about a year and a half ago.
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Over the past 2 weeks, started having a whining noise from front end. It seems to be coming from the front passenger side. The noise starts at around 30 mph and increases with speed. Very noticeable at highway speed. Sounded a bit like tire noise. I did rotate the tires, front to back, but noise persists from the front.
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I love my 2003 Honda CR-V and it works perfectly except for the cruise control. It may work for 5 miles or 200 miles, but at some point while riding along just fine the car bucks, decreases and then increases speed, and then the cruise disengages. Once this happens, it takes a long time for the cruise control to take hold again. This is an intermittent problem and almost impossible for a mechanic to figure out. I'd love to solve this mystery as I plan to keep this car for at least 300,000 miles! I'm only up to 179,000.
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I have noticed that the passenger seat has a vibration that can not be felt anywhere else in the truck. You can actually see/feel it from the drivers seat when no one is sitting in it. However, you can not feel this vibration through the steering wheel, gas peddle, door panels, etc. It increases with speed with is present at low and high speeds. My thought is that perhaps the seat is loose? When sitting in it it feels like the back right wheel is out of balance but I know it isn't (recent road force balance and feeling in all other seats confirms this). Could it be I just need to tighten the seat/tracks?
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