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1981

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Question
Transmission
When you changed the fluid with the new fluid, transmission debris that built up over time is breaking loose and blocking the small passages in the valve body of the transmission, causing the shifting problems. Your transmission may need to...
Question
where is the oil filter located on this engine?
You will find it on the passenger side rear of the engine. It's a little tough to get to unless on a vehicle lift.
Question
Transmission fluid leak dipstick - 1981 Mercedes Benz 240D
Hello. It sounds like the transmission may be overfilled and the fluid is being pushed up through the dipstick tube. There may also be a problem with the torque converter leaking or some of the internal parts of the transmission...
Question
Car dies after about 30 minutes of driving
The ignition module failing after getting hot is the most likely failed part causing the stall. There can also be a problem with the fuel pump or sensors. I recommend seeking a certified mechanic, like one from YourMechanic, to come...
Question
Squealing noise during acceleration
Hello there. Thanks for writing in about your 1981 Chevrolet El Camino. A few common faults could cause this type of squealing. The most likely would be a fan clutch, V-belt, alternator, or a water pump. Your best bet in...
Question
Advice on buying a 1981 Datsun 280z
Those were really good cars at the time, but that was a long time ago. You are only paying 1,000 bucks so if there's little or no rust, it's definitely worth that. I know some guys who put Chevy V8...
Question
Fuel pump replacement
Hello Kyle. It sounds like the electric pump is getting hot and malfunctioning. I would either replace it with the same pump or go back to the mechanical pump. I prefer the use the mechanical pump on this 1981 Toyota...
Question
Plug off oil line ?
I would suggest hooking everything up the way it was intended from the factory, to ensure proper operation. If you're not planning on using the alternator that was designed for that motor, then I would suggest looping the oil passages...
Question
Car won't shift into second and has transmission fluid leaking. Transmission is a 200R4.
Hello, this sounds like a problem with the governor, perhaps the governor spring to be specific. If the spring breaks, it will not allow the 1-2 shift. The fluid leak is likely not a big deal on its own -...
Question
Oil light comes on when idle
I would recommend checking the oil level. Sometimes when an engine is just slightly low, the oil light may come on at idle simply due to the lack of oil pressure when the motor is not working as hard. Be...
Question
I want to know which 5speed Transmissions are compatible with my setup
You need interchange data...try inputting your particulars into www.car-part.com. Also try posting to the Ford Bronco "users groups" on the internet. If you look for a vendor of the rebuild kit for your existing transmission that vendor, if they do...
Question
Truck turns over but wont start
Hello there, many common faults will cause your 1981 Dodge D150 to not start. The most common would be the battery, starter, batter cable, fuel pump, fuel filter, ignition switch or a wiring harness fault. A qualified technician, such as...
Question
Rear end
Hello. On a vehicle this old, it is virtually impossible to tell what gear ratio was originally installed in your trucks differential, or what may be in there now. New vehicles tend to have a metal tag attached to the...
Question
Have to accelerate slowly or dies
Hey there. This problem of stalls on acceleration is most likely caused by the carburetor accelerator pump is not pumping fuel into the engine when the throttle is pressed. This explains the vehicle running great at steady speeds and idles...
Question
Pitted surface around exhaust ports on head.
The cylinder head gasket mating surface must be machined flat to ensure a proper seal and the exhaust manifold mounting surface may be machined if there is an exhaust leak there from the cylinder head warping. A few small pits...
Question
Keeps leaking bad from cover & seal
Depending on the engine you have I would say you may have a leaking intake seal on the back of the engine block where the intake and block meet. If you can see an active oil leak from one of...
Question
Does an 1981 Chevrolet C10 have have manual shutoff for the passenger airbag?
A 1981 Chevrolet C10 pickup truck did not come equipped with a passenger air bag, that I am familiar with, or can find any information in regards to. You may want to contact the Chevrolet dealer to see if they...
Question
Car will stall out at random while driving?
Hey there. While it has been some time since I worked on one of these early CCC vehicles, the first place I would look is the carburetor itself. If the vehicle idles fine but stalls or hesitates when hitting...
Question
how to clear diesel fuel out the motor
Running the vehicle with part diesel can damage the engine so remove as much of the fuel as possible. That means that the fuel tank has to be drained as completely as possible. Obviously, when draining the fuel tank exercise...
Question
A/C is not working properly - 1981 Chevrolet Caprice
Hi and thanks for contacting YourMechanic. Get a pressure tester and check to see if there is any refrigerant in the system. If there is no refrigerant, then you will need to fill it up and check for leaks by...

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