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1981

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Q: My car cranks but won't start
It appears you have performed a lot of work on your Ford F250. However, the information provided is still limited due to not knowing why these parts were replaced. Knowing if the vehicle was running prior to the replacement of...
Question
Car difficult to start
Hello. Most of the time if the starter is new then you have a bad battery or a failing battery cable. If the battery has been tested and is fine then the battery cables need to be checked. A certified...
Question
Oil leaking onto exhaust
Hi. If your oil is dripping onto your exhaust, I suspect that the leak may not be coming from the oil pan, as the oil pan is usually below the exhaust. A certified mechanic can inspect the oil leak and...
Question
Q: Car starting and dying
Hi. Replacing parts without diagnosing can get expensive very quickly. The carburetor needs to be adjusted properly before installing (idle screws 3 1/2 turns out, throttle stop barely cracked) and the insulator gasket has to be the correct part. Many...
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
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
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
Q: 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
Q: 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
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
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
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
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
What is the firing order for a 1981 Chevrolet Corvette. If you have a diagram handy that would help me out a lot. Thanks!
The firing order for the Chevy 350 is 1-8-4-3-6-5-7-2 as the distributor spins clockwise. As you know, cylinders 2,4,6,8 run along the left side of the motor (assuming you are standing in front of the car facing the engine) and...
Question
Mercedes 380SL starting up, rough idling, then cutting off and dying
The mileage is not that high but due to the age, before attempting further diagnostics, you should test cylinder compression and intake vacuum (to check for stuck valves). If you determine that the engine is basically mechanically sound, there are...
Question
check engine light when headlights on.
The best thing to do is read the code that is being output by the ECM and that is causing the check engine light to come on. In 1981, of course, the number of codes output was very limited but...
Question
Q: Power problems
You may have defective ignition module or distributor pip sensor. I would suggest having a mechanic like one from YourMechanic check the problem for you or you can start by replacing the ignition module and see if it helps? You...

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