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rpmdiag
rpmdiag, Tech and Instructor
Category: Mazda
Satisfied Customers: 7068
Experience:  Since 1975
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I hope you can help me. I'm working on a Mazda 2005 B4000

Customer Question

Hi, I hope you can help me. I'm working on a Mazda 2005 B4000 p/u, It just die'd while I was driving it, so after towing home, I checked for spark at Plug, and was good. then put fuel in plug hole and it started for a sec. then I cked all fuses under hood box & p/s foot panel box with test light, all good so went ahead and put a fuel pump in, I tested return flow and fuel came out return line when key was turned on. after installing still no start. relay seems to be good, pushed down on fuel safety switch, still no start. does this truck have a fuel injector shut off or what do you think
Submitted: 6 months ago.
Category: Mazda
Expert:  david craig replied 6 months ago.

Hi Im David, I'll be helping you with your problem. allow me to pull up some info on the vehicle ...thanks

Expert:  david craig replied 6 months ago.

do you have access to a noid light to check for fuel injector pulse?

Expert:  david craig replied 6 months ago.

do you still need assistance?

Expert:  david craig replied 6 months ago.

hello??????????

Customer: replied 6 months ago.
still need help. I do not feel the injector clicking and no noid tester
Expert:  david craig replied 6 months ago.

ok brother gimme a sec

Expert:  david craig replied 6 months ago.

heres a print to get an idea of what we need to look at

Expert:  david craig replied 6 months ago.

another one

Expert:  david craig replied 6 months ago.

can you hear the fuel pump come on for a few seconds when you turn the key to the on position?

Expert:  rpmdiag replied 6 months ago.

Hi, welcome to Just Answer. I’m Ron and I’ll be helping you
today.
Before we get started though, Please understand that I don't know
your skill level or tools you have to assist us. Also understand that
I can't see, smell, hear, or touch the vehicle either, so patience is
appreciated. JA is a great Q/A site, but it does NOT replace a
repair shop.
My goal is to make you happy and get a great rating in return for
my time. Sometimes I have to give you bad news that I know you
didn’t want to hear, so please don’t shoot the messenger.

Different expert here, do you still need help?

Thanks, Ron

Customer: replied 6 months ago.
Hi Ron, still won't start, I am a Kenworth diesel mechanic. is it possible that the timing chain could be at fault, I see rt cam turning through oil cap but can't see driver's side, no faults on my scanner thou,
Customer: replied 6 months ago.
is the full tank pressure sensor mounted on the tank?
Expert:  rpmdiag replied 6 months ago.

Yes, do a compression test next and YES, the fuel level sensor is inside the tank. Pressure sensor is in line with the pressure line in.

Thanks again and please remember to rate me 5 stars and keep this link in case you need me again later on.

Ron