Why does my engine have a hard time starting?

Why does my engine have a hard time starting?

Fouled plugs are one of the most common reasons for a hard starting engine. This can lead to prolonged cranking before the engine will start. Clogged Fuel Filter: A fuel filter that is clogged can make a vehicle very difficult to start. The fuel filter screens out contaminants and can become clogged over time.

How do you diagnose hard starting?

How to Troubleshoot a Car That is Hard to Start

1. Step 1: Insert your key.
2. Step 2: Starter pushes the flywheel or flexplate.
3. Step 3: The engine turns over.
4. Step 1: Start the car in Park.
5. Step 2: Check the battery.
6. Step 3: Check the starter.
7. Step 4: Check the spark.
8. Step 5: Check the fuel.

What causes no start on a 2002 Forester?

6, IAC is Idle air Control. Once you have the throttle open, this is out of the picture. Your 02 Forester has a MAP (Manifold Absolute Pressure) sensor. It can cause a no start, no run, but doesn’t usually cause the intermittent problems seen with a contaminated MAF sensor strip.

What kind of stereo does a Subaru Forester have?

The Forester’s stereo system evolved a bit over the years, but the basic set-up involved either a standard single-DIN (2″ tall) one-disc AM/FM/CD radio or an optional double-DIN (4″ tall) in-dash 6-CD changer. Later models added an aux input. The stock radios also included the NOAA weather band — a wonderfully handy Subaru kind of touch.

Why does my Forester surge with low temp?

A Seafoam type treatment. perhaps the cylinders have carbon deposits which effectively raises the compression. (inspect plugs for carbon deposits – also, perhaps the system is running rich? possible Engine temp sensor malfunction?) Read the ECU settings and see if the timing is adjusted reasonably.

Is there a knock sensor on my Subaru Forester?

High octane fuel and over the counter additives won’t do it if the carbon is really built up. Seafoam might though (from everything I keep hearing about it). Since the car is responding differently to the octane level of the fuel, you may have some issue with the knock sensor. Subarus have been noted for overly sensitive knock sensors.