Skip the auto shop - Our mechanics make house calls

Q: slow cranking randomly

asked by on

Hello I have a 06 nissan altima 2.5, and its has a slow cranking problem but it does it randomly, i have changed the starter, spark plug, ignition coil, camshaft and crankshaft sensor and it still is acting up, sometimes it cranks fine and other times i have to crank it twice, can you help??? My car has 148000 miles. My car has an automatic transmission. the fuel pump works well, pls help i need it

A: You will have to have the fuel pressure tes...

You will have to have the fuel pressure tested to see if the system is holding fuel pressure at the injectors after you shut it off and see if the fuel pressure meets specifications. If the fuel pressure leaks down, then the fuel pump and fuel pressure regulator will need to be isolated and tested for leaking down fuel pressure back to the tank after you shut it off. This test is for checking whether the engine is displaying a crank no start or a slow start. If the engine turns slow like it has a weak battery, then check the battery under a load and all cables. If you want these tests done for you, a professional from YourMechanic can come to your home or office to diagnose the hard starting issue and assist you with a repair.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: What does the passenger front air bag light indicate?

Your Altima is equipped with an intelligent system of sensors designed to determine if the passenger front air bag should be on or off. The Air Bag Off Light on your dash tells you the status of the system. Here’s...

Q: What rear end will direct swap with a C200 rear end?

Hello and thank you for contacting YourMechanic. You can put any Nissan or Toyota axle on the vehicle. If you use a different rear axle, you will need to switch the yoke to match the drive shaft and you may...

Q: no crank no start condition. new starter new alternator. i have no idea what is wrong.

Hey there. From your description it sounds like it's either a simple starter relay or an ignition switch not making contact. I recommend trying to move the shifter into neutral and see if it will start from there. This could...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.