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Craftsman 42 YT 4000. The pressure relieve valve rod seems to be stuck and can be pulled out to the relief position. Worked fine a couple months ago.

I tried pushing and pulling it to loosen it up bud I don't want to bend the relief lever.

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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Mikey108
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SOURCE: OIL PRESSURE RELIEF VALVE

If cleaning the engine does not work, replace the oil press. sending unit. These senders on Jeeps have had a history of problems where they will work one day and not the next day.

Posted on Jan 27, 2009

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  • 1201 Answers

SOURCE: Location of Oil Pressure Sensor and Oil Pressure Relieve Valve

the oil pressure switch is on pssenger side, lower engine area,beside oil filter, mounted in engine block. The pressure relief valve is in the oil pump, in which case, you have to drop the oil pan,and take off the oil pump.

Posted on Jan 31, 2009

ghost4548
  • 776 Answers

SOURCE: timing slipped will it bend intake, exhaust or both sets of valve

First of all, you'll want to perform what's called a 'LEAK-DOWN' test. The assumption you make (regarding Intake versus exhaust) is irrevelant. Interferrence is BOTH intake and exhaust valve clearances. A leak down or "cylinder leakage" test is similar to a compression test in that it tells you how well your engine's cylinders are sealing. But instead of measuring pressure, it measures pressure loss.
A leak down test requires the removal of all the spark plugs. The crankshaft is then turned so that each piston is at top dead center (both valves closed) when each cylinder is tested. Some people start with cylinder number one and follow the engine's firing order.
A threaded coupling attached to a leakage gauge is screwed into a spark plug hole. Compressed air (80 to 90 psi) is then fed into the cylinder. You don't have to use that much pressure... you can use 30 psi... percentages are the same.
An engine in great condition should generally show only 5 to 10% leakage. An engine that's still in pretty good condition may show up to 20% leakage. But more than 30% leakage indicates trouble.
The neat thing about a leakage test (as opposed to a compression test) is that it's faster and easier to figure out where the pressure is going. If you hear air coming out of the tailpipe, it indicates a leaky exhaust valve. Air coming out of the throttle body or carburetor would point to a leaky intake valve. Air coming out of the breather vent or PCV valve fitting would tell you the rings and/or cylinders are worn.
A leakage test can also be used in conjunction with a compression test to diagnose other kinds of problems.
A cylinder that has poor compression, but minimal leakage, usually has a valvetrain problem such as a worn cam lobe, broken valve spring, collapsed lifter, bent push rod, etc.
If all the cylinders have low compression, but show minimal leakage, the most likely cause is incorrect valve timing. The timing belt or chain may be off a notch or two.
If compression is good and leakage is minimal, but a cylinder is misfiring or shows up weak in a power balance test, it usually indicates a fuel delivery (bad injector) or ignition problem (fouled spark plug or bad plug wire). These are not ABSOLUTE conclusions -- each assumption must be VERIFIED before concluding anything. You mentioned "the lifters seem to be collapsed."... Did you VERIFY this? Since you KNOW the engine is OUT - OF - TIME because you KNOW the timing belt has SLIPPED, then you know you must PUT IT BACK IN TIME... right?...before you can continue diagnosis.... right? Otherwise, what are you MEASURING?

Posted on Jun 25, 2009

  • 1 Answer

SOURCE: 05 tacoma tailgate latch stuck

I had the same problem. I figure that dirt/rust may have accumulated inside the latching mechanism. I was able to fix it using the following steps.
1 - Remove the plastic cap that covers the top of the gate.
2 - Remove as many of the remaining torx bolts from the inside cover (you will need to do this to get inside the gate).
3 - Next, try and get some WD40 on/in the latch mechanism.
4 - Using a large screwdriver, you will need to pry the lever attached to the cable in order to release the latch.

Not a pretty process but it seemed to work. I give the latches a good lubrication frequently now, until I get around to replacing them.

Posted on Aug 05, 2009

  • 1 Answer

SOURCE: How can I loosen the lever for the gas tank to

I have a 2007 Hyudai Santa Fe and had the same problem this morning. I wasn't sure what to do and couldn't find any solutions mentioning this, so I thought I would.

My tank wasn't frozen or anything and the cable tension seemed fine. If you go to the trunk there should be an access panel on the left side wall behind the tank (has a picture of a fuel pump on it), open this up and you will see an emergency fuel tank pull cord which will open the tank. Once I opened mine, I found that the little cord that holds the gas cap on was jammed in the door hinge. I tested it a few times with the "normal" release on the driver side door and it works fine now.

Posted on May 12, 2010

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1 Answer

My 3 cyl koyota diesel has over 100 lb oil pressure but no oil in filter, what is going on?


I advise you suspect a blockage. The oil pressure seems excessive and excess pressure should be relieved and regulated by the oil pressure relief valve so surplus oil is directed back into the oil pan.

This is not happening so it would be reasonable to assume the oil flow is not reaching the relief valve. Further investigation of the spanner and dirty hands variety is needed.

Jun 06, 2016 | Cars & Trucks

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I have a 1995 80 series with a 1HD-FT motor.the engine oil pressure is slowly dropping over the last month.the engine seems to be running ok,but I am concerned that maybe the crankshaft may be faulty?


Low oil pressure (if oil is good and not diluted with fuel from some other problem) usually means main bearing are worn beyond limits, although I have seen other causes. I once found a bypass pressure relief valve to have a broken spring; once saw one stuck in open position etc., but a gradual decrease sounds fatal. Sorry to say so, but probably time to overhaul or swap engines.

Dec 29, 2014 | Cars & Trucks

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Do i need to relieve fuel pressure before replacing fuel pressure regulator on a 03 chev malibu?


yes it's under pressure can can do it by starting the car pull the fuel pump fuse and allow it to die try and restart the car a couple times with the fuse removed after that the pressure should be relieved. if you have a fuel pressure gauge you can do it by connecting it to the strader valve and relieving it that way also

Sep 11, 2010 | Chevrolet Malibu Cars & Trucks

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REPLACEING FUEL FILTER


Pressure Relief
Special Tool(s) EFI/CFI Fuel Pressure Gauge
310-012 (T80L-9974-B) swn~us~en~file=ani_caut.gif~gen~ref.gif WARNING: Do not smoke or carry lighted tobacco or open flame of any type when working on or near any fuel related component. Highly flammable mixtures are always present and may be ignited, resulting in possible personal injury.
swn~us~en~file=ani_caut.gif~gen~ref.gif WARNING: Fuel in the fuel system remains under high pressure even when the engine is not running. Before servicing or disconnecting any of the fuel lines or fuel system components, the fuel system pressure must be relieved to prevent accidental spraying of fuel, causing personal injury or a fire hazard.
  1. Remove the schrader valve cap and attach the EFI/CFI Fuel Pressure Gauge.
  2. e5e3ebf.gif
    NOTE: Open the manual valve slowly to relieve the system pressure. This may drain fuel from the system. Place fuel in a suitable container.
    Open the manual valve on the EFI/CFI Fuel Pressure Gauge slowly and relieve the fuel pressure. 9deacdd.gif
    Filter Removal
    1. Relieve the fuel pressure; refer to Above.
    1. Remove the fuel filter (9155).
      1. Disconnect the fuel lines
      1. Remove the fuel filter from the fuel filter support.
      2. b717c63.gif
      1. Push Connect Fittings
        Special Tool(s) Fuel Line Disconnect Tool
        310-S039 (T90T-9550-S) 4bbcf9e.gif
        1. Relieve the fuel pressure; refer to Pressure Relief in this section.
        1. Disconnect the safety clip from the male hose.
        2. Install the fuel line disconnect tool and push into the fitting. f0af03c.gif
          Install the fuel line disconnect tool and push into the fitting. 367328f.gifSeparate the fittings.
          • Inspect for damage.
          • Clean the fittings.
          • 3beef33.gif

Sep 02, 2010 | 1998 Ford Explorer

1 Answer

2004 f150 runs fine two minutes ..then no oil 5.4


There is clearly a fault in the oil pressure side.

This could be a blocked oil filter with the bypass valve stuck closed.

Or the oil pressure relief valve could be sticking in the open position.

These are both relativelly easy and cheep things to try first.

Feb 03, 2010 | 2004 Ford F150

2 Answers

My 85 s10 blazer keeps pushing the seal out of the oil filter and puking out the oil. ever heard of this?


yes your oil pump pressure relief valve is stuck the oil pump has to come out.it is building way to much pressure.

Mar 29, 2009 | 1985 Chevrolet S-10

1 Answer

Location of Oil Pressure Sensor and Oil Pressure Relieve Valve


the oil pressure switch is on pssenger side, lower engine area,beside oil filter, mounted in engine block. The pressure relief valve is in the oil pump, in which case, you have to drop the oil pan,and take off the oil pump.

Jan 31, 2009 | 1989 Toyota Land Cruiser

2 Answers

OIL PRESSURE RELIEF VALVE


If cleaning the engine does not work, replace the oil press. sending unit. These senders on Jeeps have had a history of problems where they will work one day and not the next day.

Jan 25, 2009 | 2001 Jeep Grand Cherokee

1 Answer

98 Ford Explorer wont move in reverse or overdrive


Probably low oil pressure in the transmission or worn clutches.

Mar 09, 2017 | 1998 Ford Explorer

1 Answer

A/c compressor runs with dash switch off then loses freon from relief valve


we can solve this, but i need more info, a/c compressor should not run with the dash switch to off, so there could be a short in the switch or something is powering your a/c compressor.

another thing is the gas being relieve to your relief valve, your condenser fan could not be running there by creating a high head pressure to relieve on the relief valve or the valve could be open already and not the type where it seats back if the pressure is already low.

are you just putting gas right now as these things happens?

if so, you could have a clogged in your system, building a high head pressure to relieve in the valve.

the clogged could be in the filter dryer, or the expansion valve inside the evaporator coil.

tnx 4 using fixya,


drcool

Sep 28, 2008 | Chevrolet Crew Cab Cars & Trucks

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