How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Matt Your Own Question
Matt
Matt, Engineer
Category: VW
Satisfied Customers: 22002
Experience:  Mechanical Engineer with 20 years experience in the auto industry, 8 yrs in formula 1 engine testing
12772297
Type Your VW Question Here...
Matt is online now
A new question is answered every 9 seconds

Got spark, fuel,, Will not start just cranks, 2001 vw jetta

Customer Question

Got spark, fuel,,
JA: Has the vehicle turned into a gas hog? And how does it start -- same as usual?
Customer: Will not start just cranks
JA: What is the model/year of your VW?
Customer: 2001 vw jetta 2.0
JA: Are you fixing your Jetta yourself? What have you tried so far?
Customer: Pressure regulator was leaking changed that new starter new coil
JA: Anything else you want the mechanic to know before I connect you?
Customer: No
Submitted: 11 months ago.
Category: VW
Expert:  Matt replied 11 months ago.

Hello

If there is a spark and its still not starting then its likely that the ECU isn't opening the fuel injectors, if the injectors are working you can hear them click - its difficult to hear them with background noise so use a long screwdriver like a stethoscope, placing the handle end in your ear and the metal tip against the body of the injector whilst your assistant turns the engine over.

If you can't hear anything check the ECU power is present by measuring voltage at the fusebox and on its relay socket if OK then check the connections to the crank speed sensor and consider replacing this sensor if the wiring / connections look OK

If the car will start using a squirt of quick/ easi start into the intake then this confirms the problem is lack of fuel

Customer: replied 11 months ago.
Will not start with either, back fired blew a hole in muffler after multiple times of trying to start
Expert:  Matt replied 11 months ago.

Hello

OK if there's spark but it won't start with spraying ether in the intake then I'd next check the compression pressures across all cylinders as they should all be within 10-15 psi of each other

if you have 2 low cylinders its possible the cam timing is out

Customer: replied 11 months ago.
Will check injector body for clicking,
let you know
Expert:  Matt replied 11 months ago.

understood