a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US. click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need. Goodluck!
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
The two most common causes are: fuel pressure leakdown after sitting for a while and an engine coolant temp sensor. The culprit is a leaking check valve in the fuel pump. To test, turn the key to ON for 2-secs, then OFF. Repeat 3 times. The try starting. If it fires right up, have the shop do an overnight leakdown test. If the fuel system loses more the 5-8-psi overnight, then the pump must be replaced. Test 2 is to check the engine coolant temp sensor. A sensor that's off usually reports a warmer engine than actual so the computer provides too lean a startup mixture. Try depressing the gas pedal halfway. If it starts right up. have the coolant sensor tested.
by primed are you supplying a fuel source if so then the car is not getting fuel to burn. this indicates your fuel pump is bad and needs replacing and change the fuel filter also. the reason the pump won`t work sitting overnight is that the pump can`t build up enough pressure possibly because the fuel pressure is not being held, but after the first start up the system can maintain enough pressure to start through out the day. you can have the fuel pressure and volume checked with a gage when the problem occours to verify.
There is a separate circuit and relay that primes the fuel system when you start the vehicle. If you sit in a silent location and turn the key to the ON position (without cranking), you should hear the fuel pump run for about 5-6 seconds. This is to bring the fuel pressure up in order to let the vehicle start. Then the normal pump circuit takes over. Sounds like your priming circuit is not working. I would try the relay first.
you either need fuel filter replacement or fuel pump. filter should be under the passanger rear in front of rear tire on frame rail, fuel pump is in the gas tank the tank needs to be removed for replacement i would try the filter first there only about 20 or 30 dollars and pretty simple to change
Is the pressure in the fuel system not holding? Fuel pump may be failing or the filter may be bad. Sounds like you're pumping the fuel system back up to pressure before the truck will start. Like when a fuel-injected car runs outta gas and you have to prime the system before it'll start again.
Do you mean 8 to 10 seconds to START? Turn over means the engine is turning or cranking BUT starting is when the engine is actually running. I think you might have a fuel problem like your loosing your prime. Turn the key off wait 15 sec. then turn the key ON not cranking it repeat this (3x) if the car starts immediatedly your fuel pump is loosing its prime or the fuel pressure regulator is leaking.
I would start with a fuel line psi test. then have your fuel acumulator.
check this out and see if it helps. It sounds like you are priming the psi up when cranking then it can go. but when you let it sit the pressure drops and has to build up again. I a not a VW person myself but love tinkering, so let me know how it goes.