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1981

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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
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
I put a new fuel pump on and can't get fuel to the pump now
If you put in an aftermarket pump that you had to rewire to put it in then you will need to verify the fuel pump is wires in the correct polarity. The pump may be running backwards.
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
Is there a wire in my car that is only on when the car is off?
Hi there. Check the fuse box for any live circuits with a test light and the ignition switch turned to the off position. Then hook up your exterior lighting system to that port with a fusible link and a toggle...
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
Why is my 1981 Toyota Pickup burning coolant
Hi there. If the engine continues to burn coolant then you may have a warped block or there are a few other places where coolant can enter the engine. I have seen cracks in the timing cover and in the...
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
Charging system battery keeps getting drained
Hello, You may have a failing voltage regulator that could be allowing the alternator to supply too much or too little amperage to the battery resulting in the battery never maintaining a consistent charge as it is designed to. The...
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...
Question
There is a knock under the body.
Hi there. Try putting the transmission in drive and reverse back and forth. If the clunk is heard in both directions and the clunk changes in sound pitch, then there is a universal joint that has the bearings burned up...
Question
THE CARS DOES NOT ENGAGE IN GEAR , EVEN THO IT DID WHEN IT CAME OFF DELIVERY TRAILER, I HAVER EXAMINED THE LINKAGE
Hi Hugo. It sounds like something may have come loose; shift cable, connector, linkage, etc.. Are there any warning lights illuminated? Are there any noises that don't sound normal present? All in all it sounds like a connection may have...
Question
I need help about engine swapping 1981 Chevrolet Camaro
Hi - answering the question of "How much engine do I really want from an engine swap?" turns into a "religious" discussion quickly. If a little is good, a lot is better... The more practical questions are "How will the...

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