Hello, thank you for writing in. Your issue is stemming from the air conditioning condenser that is used when you engage the A/C or the defrost. The squealing noise that you are hearing is likely coming from the pulley that powers the condenser. This pulley is powered by the vehicle’s drive belt, and would absolutely explain why the vehicle is stalling or running rough when its engaged. The drive belt is powered by the engine and it is not powerful enough to compensate for the malfunction. You will need to replace the pulley, and possibly the condenser depending on what an inspection shows.
How to Identify and Fix Common car Problems ?
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There are several causes for your car to lose power significantly while accelerating. The most typical causes of a car not accelerating while driving include a faulty sensor, contaminated fuel or air filters, or a faulty timing belt.
You will feel a loss in power while accelerating and at times intermittent jerks. To solve this issue find the fuel filter located in the engine bay or near the fuel tank in your car`s trunk. If the fuel filter is clogged replace it if you have the skills to do so or get it changed at your local mechanic shop.
Heat causes electrical resistance in a circuit or component to increase. If you have a bad component that may have a bad internal connection, the increase in temperature could cause a voltage drop in the component. Also, heat can cause a crank position sensor to act up if it is starting to fail.
The most common reasons a Nissan 300ZX won`t start are a dead battery, an alternator problem, or failed starter.
Trouble accelerating can come from a few different engine issues. These include, but are not limited to, dirty fuel injectors, low fuel pressure, and restricted airflow. A problem with the mass airflow sensor, throttle position sensor, or engine speed sensor can also cause a car to have difficulty picking up speed.
Why does my car not accelerate when I push the gas? A car not accelerating properly can be caused by a number of things. It could be due to the throttle body, gas tank, spark plugs, or the ECU. It could also be because you have a dirty air filter or a clogged fuel filter.
If your clutch slips, you will also lose power. Your engine will be revving high but your wheels won`t be moving forward. A slipping clutch is a sign that the clutch needs to be replaced. Again, the clutch is responsible for the power transfer between the engine and the transmission and back to the engine.
A bad carburetor may result in an engine with sluggish acceleration, and a noticeable reduction in power and fuel efficiency.
Low oil levels cause valves to burn up, seals to dry out, and internal parts to heat up and eventually deform or break. Until something breaks, the engine will continue to lose power and burn more fuel while running poorly.
Nissan`s 1990s GT coupe, the Z32 300ZX, is a polarising machine. Lauded for its sporty looks, advanced technology and high-performance from the optional twin-turbo VG30 V6 engine, the 300ZX has also been accused of being bloated, overly complicated, prone to breakdowns, and difficult to work on.
Problem Description. If the engine cranks but does not start, or starts and stalls, the fuses should be inspected, especially the power door locks fuse. The power door lock fuse provides power to a module that sends the Powertrain Control Module (PCM) the “OK to start” signal.
Faulty spark plugs result in an engine misfire due to incomplete burning fuel. An interrupted combustion process can significantly affect the engine performance. Unattended engine misfire may result in intermittent strange engine sounds, power loss, and engine knock.
If a spark plug or multiple spark plugs are faulty, they will have trouble creating the spark that causes the ignition process in your vehicle. This results in your vehicle having trouble starting, hesitating or having issues with accelerating properly.
What causes partial loss of power? Partial power outages are fairly common occurrences in most areas. They can be caused by a tripped circuit breaker, a broken connector, or a loose wire at a service lead. They can also be a sign that your electrical panel is failing.
The formula to calculate the line loss is P = I × V. If a current `I` flows through a given element in your circuit, losing voltage `V` in the process, then the power `P` dissipated by that circuit element is the product of that current and voltage.
An engine control unit (ECU), also called an engine control module (ECM), is a device which controls multiple systems of an internal combustion engine in a single unit. Systems commonly controlled by an ECU include the fuel injection and ignition systems.
It could be a dead alternator, a bad coolant sensor or lack of fuel, just to name a few. Is your car stalling while accelerating? If so, then it could be a major vacuum leak, clogged fuel filter or a bad fuel pump. If your vehicle is stalling when driving, seek professional help to track down and fix the issue.