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 sprinkles08 Your Own Question
sprinkles08, ASE Certified Technician
Category: Toyota
Satisfied Customers: 22985
Experience:  ASE Master and Advanced level certified. Factory trained with 15 years dealership experience
Type Your Toyota Question Here...
sprinkles08 is online now
A new question is answered every 9 seconds

04 rx330. Won't start. Has fuel, turns over, no spark.

Customer Question

Customer: 04 rx330. Won't start. Has fuel, turns over, no spark.
JA: Thanks. Can you give me any more details about your issue?
Customer: My name is ***** ***** the way. There are no engine codes. This happened a few weeks ago and then after a couple of hours it started. Not this time.
JA: OK got it. Last thing — JustAnswer charges a fee (generally around $20) to post your type of question to Toyota Experts (you only pay if satisfied). There are a couple customers ahead of you. Are you willing to wait a bit?
Customer: have to leave shortly but can check back later.
JA: OK. Now I'm going to take you to a page to place a secure deposit with JustAnswer. Don't worry, this chat is saved. After that, we will finish helping you.
Submitted: 1 year ago.
Category: Toyota
Expert:  sprinkles08 replied 1 year ago.

Hello and welcome to JustAnswer!

There are quite a few things that will cause a loss of spark. You may have a wiring issue, a loss of cam or crank signal, the problem could be the engine controller itself. Cam timing will also cause a loss of spark but it shouldn't be intermittent.

During the no start situation do you actually hear the fuel pump run when the key is turned on?
re you able to monitor data?

Customer: replied 1 year ago.
I couldn't hear the pump when the key was cycled so I loosened the bolt holding the fuel line to the fuel rail and there seemed to be considerable pressure. Did not measure it though. Pulled one plug, left it attached to the coil, attached a ground wire and turned over the engine. No visible spark.
Expert:  sprinkles08 replied 1 year ago.

It may have been residual pressure though. Did it spray forcefully each time the key was turned on?

Customer: replied 1 year ago.
Didn't try that. Only checked once. I'll try that tomorrow. If I was going to hook up a gauge, where would it connect? Right to that line or is there a schrader valve somewhere?
Expert:  sprinkles08 replied 1 year ago.

A pressure gauge could connect to the line or a T hose between the line and fuel rail, and the gauge connected to the T.

Customer: replied 1 year ago.
The fuel pump doesn't cycle when you turn the key on but there's lots of fuel when the engine turns over.
Expert:  sprinkles08 replied 1 year ago.

Are you able to monitor data?