Why does my Jeep take so long to start?

When this problem occurs only after the Jeep has been sitting a longer while, it’s usually from a leaky check valve in the fuel pump. If this problem occurs even if the Jeep has been sitting for just minutes it’s usually caused by a leaky fuel pressure regulator check valve.

How do you tell if your YJ is lifted?

Look on the top of the springs for a number that might be painted there. Google “Spring Lift XXXXXX” with XXXXXX being the number that you discover.

What is the best year for Jeep YJ?

The very last year 4.0, 1995, had the double diaphragm brake booster so that would be considered the best of the breed YJ.

What causes long crank time?

When an engine cranks for a long time before it starts, either spark or fuel is missing or weak and each has its own reasons. A bad coolant sensor, a bad throttle position sensor (TPS), a bad fuel pump or a plugged fuel filter can all cause a lean condition causing long cranking times.

How long can you crank a starter?

make sure not to crank the engine for more than 15 seconds at a time. Current going through the armature may overheat parts, damage internal components and ruin the starter.

How can I tell how high my Jeep is lifted?

You’ll see that the spring should measure 9 3/8″ from top to bottom. This measurement is taken while the vehicle is on the ground. Measure your spring, and anything over the 9 3/8″ will be how much lift you have. For instance, if you measure your front spring and you come up with 13 3/8″, that means you have a 4″ lift.

Can bad spark plugs cause slow crank?

Common signs of faulty spark plugs include slow acceleration, loss of power, poor fuel economy, engine misfires, and difficulty starting the car.

Why does my Jeep Wrangler still crank when I start it?

You don’t have the same components. The whole problem here is that the computer isn’t powering up like it should when you first turn the key on. The reason the jeep still cranks is that the starter motor circuit is totally separate from the computer.

How to test 12V power on Jeep Wrangler YJ?

Just remember to hook it back up when it comes time to test for 12V power again or you’ll be scratching your head. To actually do the test, set your dial to Ohms/resistance/continuity and simply touch one lead from the meter to your starting point, and the other to your ending power and watch you meter for whatever it does when there is continuity.

Can a Jeep Wrangler YJ start without a computer?

Without the computer though there’s no fuel and no spark, so the engine merely spins without starting.

What kind of start does a Jeep Wrangler make?

You guessed it, the jeep doesn’t always start right away. Instead it seems to sit there and crank forever. Usually (but not always) this is followed by a rapid clicking sound coming from under the hood and then miraculously the jeep will start.