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Water in oil, 1991 toyota 22r - Tacoma Toyota Cars & Trucks

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Water in the oil is caused by a warped cylinder head. When an engine overheats it causes expansion of the metal and stretches the bolts on the cylinder head. Water enters the oil by gaps in the gasket. You can try to fix it with some radiator sealer but if that doesn't help you have to remove the head. The shop will determine if it is salvageable and can give an estimate for repairs.

Posted on Mar 18, 2011

  • rusty rod Mar 28, 2011

    check the timing chain cover ,some times the timing chain, has got slack over the years and wears a hole in the cover,and lets water in crankcase.

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Posted on Jan 02, 2017

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1991 toyota 4runner 3.0 v6 cuts out under load


Could be maf or tps. Here are some test procedures:

Volume Air Flow (VAF) MeterOPERATION This component is used on 22R-E, 1FZ-FE, 3VZ-E and 3F-E engines.
This meter measures the amount of air flowing through the intake system. It is used by the ECM to calculate air/fuel mixture.
TESTING 22R-E, 1FZ-FE and 3VZ-E Engines
See Figure 1
Disconnect the wiring from the VAF meter.Using an ohmmeter, measure the resistance between terminals E2 and VS. Resistance should be as follows: 3VZ-E-200-600 ohms

3d23f7f5-25ac-415e-bb30-8a2de44707c6.gif
Fig. 1: Attach the ohmmeter to terminals E2 and VS

If the test is not within specification, replace the unit.



Throttle position sensors are usually mounted on the side of the throttle body. The sensor detects the throttle valve opening angle. The voltage of terminal VTA increases in proportion of the opening angle of the throttle valve. The ECM judges the driving conditions from the input signals of the terminals, and uses them as one of the conditions for deciding the air/fuel ratio correction, power increases and fuel cut-off control. 3VZ-E and 1FZ-FE Engines
Confirm that the throttle valve is fully closed.Connect an ohmmeter to terminals IDL and E2. E2 is the bottom terminal, while terminal IDL is positioned directly above it.
Insert a 0.020 in. (0.50mm) thick feeler gauge between the throttle stop screw and lever. Check for continuity between terminals IDL and E2 of the sensor. Continuity should be present.Insert a 0.031 in. (0.80mm) thick feeler gauge between the throttle stop screw and lever. Check for continuity between terminals IDL and E2 of the sensor. Continuity should not be present.
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Jul 29, 2017 | Toyota Cars & Trucks

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How to fix a timing chain rattle on a 85-94 Toyota 22R engine


Toyota 22R 1985-94 85- Celica, P.U., Four runner.

There are two basic different 20-21-22r engines, and three different timing chain setups. The early tall block 20-22r block used a dual row chain with steel backed rubber faced guides, the 83-84 22r used a single row chain with plastic guides and short step bolts, then came the final setup, a shorter block, thinner head, combustion chamber with a large squish area, nearly flat pistons, and pear shaped exhaust ports. It has a single row chain, with plastic guides with long step bolts on the left (drivers side) and short step bolts on the right holding the guides on. On this last 22R there is high incidence of guide failure, usually starting with the long straighter left guide breaking, allowing the chain to rattle against the timing cover in the area where the coolant passes through to the water pump, eventually wearing through and letting coolant into the crankcase. Upon inspection we find the chain is loose when installed, the tensioner is close to half way out on a new engine.

If we use a right side, curved guide and
short step bolts from an 83-84 and a prestretched timing chain, it goes together tight, the tensioner is fully retracted making the whole setup have less play, and less chance to rattle and break the left guide. I've never seen this setup fail, oil leaks from using sealant around the oil ports on the right side have been tough, but using the factory gasket on this side seems to work, also the felpro with printed seal in this area seem to work well.

This is critical if the block and head have been surfaced, making the chain even looser.

Hope this helps

on Apr 29, 2010 | Toyota Pickup Cars & Trucks

1 Answer

HOW DO I GO ABOUT SETTING THE TIMING CORRECTLY ON A 1991 TOYOTA PICK UP 22R


Does it pop and backfire? Are you sure the distributor was also correctly set? If any of that is true, you may be 180° out of time.

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1 Answer

Fuel comsuption 22r


I see this a few days old now,my carbed 22r is getting about 18-19 mpg on 31" tires,or about 340 to a tank,so you should get about 540 kms off a tank bearing in mind my tank holds 18.6 gallons or 70 liters.Definitely something wrong with the truck,how does the truck run good power?is it auto or manual?

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1 Answer

Water/oil mixing in 22r engine


yes it can mix, also check the timing cover for rubs from the timing chain. this is the common problem with 22r. many mechanics will tell you its the block but they are just trying to make money.

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Check engine lite blinks 4 times then 3 codes say starter singal...what does that mean..91 toyota truck


its the IG switch circuit or the IG switch Or ECU Which all means that check your Computer behind the right side kick panal for a good connection on everything and check the IG switch which is the ignition switch its located under the dash connected to your ignition

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1 Answer

Toyota 89 4x4 22r-e Timingbelt


I've rebuilt my engine on my '86 22R-E.
I'm willing to bet the timing chain cover it cracked if the timing chain broke. Coolant does run through the timing chain cover and the water pump is mounted to it.

Best thing to do is get a Chilton manual at the Autoparts store. It runs about $20. That way you have better research material. It will give you step by step procedure to do repairs.

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1 Answer

Oil in the radiator on a 90 Toyota with a 22R engine. What is blown, a head gasket or timing cover has a hole in it?


timing cover is warn through I bet the guides are broken and it makes a knocking sound! most common problem. You will need a timing kit and a cover.

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