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It starts, barely, then right away dies. 1993 t-100. I fully…

Customer Question
It starts, barely, then...

It starts, barely, then right away dies

Mechanic's Assistant: Will the headlights turn on? Is the battery fully charged?

Yes

Mechanic's Assistant: What is the model/year of your Toyota?

1993 t-100

Mechanic's Assistant: Are you fixing your T100 yourself? What have you tried so far?

I fully charge battery and replace cables

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

Ran good 2 days ago

Submitted: 8 months ago.Category: Toyota
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Answered in 1 minute by:
9/7/2017
Toyota Mechanic: Edward, ASE Certified Technician replied 8 months ago
Edward
Edward, ASE Certified Technician
Category: Toyota
Satisfied Customers: 3,631
Experience: I have over 20 years experience in the automotive service industry.
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Hello, and thanks for your question. My name is ***** ***** I will do all I can to help.

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Toyota Mechanic: Edward, ASE Certified Technician replied 8 months ago

What if you try spraying some starting fluid directly into the air intake? does it seem to run better that way? and will it run longer by spraying it? I'm thinking it's a fuel delivery problem if it starts and then dies quickly after that.

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Customer reply replied 8 months ago
think it could be the fuel pressure regulator because few days ago I was driving and all of a sudden it was losing power. almost as if it was out of gas. had to slightly pump the gas just to make it home.
Toyota Mechanic: Edward, ASE Certified Technician replied 8 months ago

I understand. It's probably the pump in my opinion, Is it the original fuel pump to your knowledge? or have you had it changed before? How long have you had the truck?

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Customer reply replied 8 months ago
not as yet,
Toyota Mechanic: Edward, ASE Certified Technician replied 8 months ago

Alright, will it start now and run ok? or does it stumble and cut off?

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Customer reply replied 8 months ago
I just recently purchased it. first sign was when it died going across the bay bridge. bridge service truck noticed my cable was very loose. tighten it gave me jump and drove great until dying agin 2 miles .had to get jump again. losing po
Toyota Mechanic: Edward, ASE Certified Technician replied 8 months ago

Alright, are the battery cables now clean and tight?

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Customer reply replied 8 months ago
brand new,fully ncharged battery
Customer reply replied 8 months ago
my dad thinks it some kind of electronic box or fuse that controls fuel flow
Toyota Mechanic: Edward, ASE Certified Technician replied 8 months ago

Alright, so it does fire up and run now but it just stumbles and runs bad is that right?

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Customer reply replied 8 months ago
no, it wants to start, but before it goes to idle it dies
Customer reply replied 8 months ago
it wants to start but before it goes to idle it dies
Toyota Mechanic: Edward, ASE Certified Technician replied 8 months ago

Alright, do you have any starting fluid or carb cleaner by chance?

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Customer reply replied 8 months ago
I do, but you don't think its the fuel pressure regulator
Customer reply replied 8 months ago
cause when I give it a little gas as it starts to idle it dies
Customer reply replied 8 months ago
makes a loud noise , like a back fire noise
Toyota Mechanic: Edward, ASE Certified Technician replied 8 months ago

It's possible, but not my first theory. pull the hose off the fuel pressure regulator. Is there any gas in it? or does it run any better with the hose pulled off by chance?

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Customer reply replied 8 months ago
I am at the library right now will try that when I get back. and if there is gas in it or runs better, what then
Toyota Mechanic: Edward, ASE Certified Technician replied 8 months ago

Then I would replace the pressure regulator. If it makes no difference and runs better on starting fluid or carb cleaner, then I suspect the fuel pump is weak. The pressure regulators don't go bad that often on these, which is why I believe it may be the pump itself, but it could be the regulator is broken, if it is, you will have gas in the vacuum line going to it. I believe it's one or the other. Let me know if you have any further questions. Thank you.

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Toyota Mechanic: Edward, ASE Certified Technician replied 8 months ago

Hello, following up with you. We're you able to narrow down the culprit on the truck any? thank you.

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