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Will not start

Tiny
MATTSPA123
  • MEMBER
  • 2005 MAZDA TRIBUTE
  • 3.0L
  • V6
  • 4WD
  • AUTOMATIC
  • 209,124 MILES
I replaced camshaft sensor and crankshaft sensor. I have spark. I think I have fuel because I can smell fuel and I sprayed starting fluid in it also and still wont start.
Monday, November 16th, 2020 AT 11:05 AM

18 Replies

Tiny
BMDOUBLE
  • MECHANIC
  • 1,139 POSTS
Put a battery charger or boost pack on your battery, while holding the pedal to the floor crank the engine for 5 seconds, wait 30 seconds, then repeat. This will clear out any excess fuel that you may have in the cylinder that could be causing a "flooded" no start condition. Also get a fuel sample in a clear container. This is the most non-invasive and easiest thing to try first before getting too deep.
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Monday, November 16th, 2020 AT 11:21 AM
Tiny
MATTSPA123
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  • 11 POSTS
Where would I get a fuel sample from? Could the fuel pump be bad or the filter stopped up?
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Monday, November 16th, 2020 AT 11:25 AM
Tiny
BMDOUBLE
  • MECHANIC
  • 1,139 POSTS
You can get it from either the filter, or at the fuel injector rail from the line coming into it. If you lift up the driver side rear seat, there will be an access panel for the pump itself, you can access it there but be careful of getting fuel on your seats or carpet. Here the instructions for the pump removal and installation in case this is your problem:
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Monday, November 16th, 2020 AT 11:40 AM
Tiny
MATTSPA123
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  • 11 POSTS
Can I check and see if the fuel pump is working at the fuel rail?
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Monday, November 16th, 2020 AT 11:47 AM
Tiny
BMDOUBLE
  • MECHANIC
  • 1,139 POSTS
You can do it easier at the location under the left rear seat, but yes with a gauge so you can verify pressure. 35-55 psi is the specification. https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
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Monday, November 16th, 2020 AT 1:41 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good evening,

Since you have spark and fuel from the smell, I would start with a compression test to see if the timing is correct. You could have a valve timing issue.

https://www.2carpros.com/articles/car-cranks-but-wont-start

https://www.2carpros.com/articles/how-to-test-engine-compression

You should have around 140-150 pounds of pressure. You could check the front bank which is the easiest.

Roy
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Monday, November 16th, 2020 AT 5:49 PM
Tiny
MATTSPA123
  • MEMBER
  • 11 POSTS
Okay, can I rent a compression tool from a part store?
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Monday, November 16th, 2020 AT 6:08 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Yes, you can. You could buy a cheap one at Harbor Freight as well.

Roy
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Monday, November 16th, 2020 AT 6:27 PM
Tiny
MATTSPA123
  • MEMBER
  • 11 POSTS
If it jump time that will cause it not to start also right? I look at the timing chain it seem to turn when it was cranking but could have something broke in there that I can't see.
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Monday, November 16th, 2020 AT 6:29 PM
Tiny
ASEMASTER6371
  • MECHANIC
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That is correct.

I attached the diagram of the timing chain alignments. You have 2 chains that have guides and tensioners.

https://www.2carpros.com/articles/how-a-timing-belt-works

I attached a youtube video of the process for you. There are 2 parts.

https://www.youtube.com/watch?v=CrQVPfniviQ

https://www.youtube.com/watch?v=84-bPOw0h7o

Roy

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Monday, November 16th, 2020 AT 6:42 PM
Tiny
MATTSPA123
  • MEMBER
  • 11 POSTS
How many camshaft position sensor does this have one or two? I replace one already.
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Monday, November 16th, 2020 AT 6:49 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Okay, I attached the location and procedure for the cam sensor for you.

Roy

CAMSHAFT POSITION (CMP) SENSOR

Removal and Installation
1. Disconnect the electrical connector.
2. Remove the CMP bolt.
3. Remove the CMP sensor.
4. Remove the O-ring.
5. To install, reverse the removal procedure.
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Tuesday, November 17th, 2020 AT 1:33 AM
Tiny
BMDOUBLE
  • MECHANIC
  • 1,139 POSTS
My suggestion was the less invasive, easiest thing to try and is always the first thing to check due to the fact that sometimes a vehicle will come in on a tow truck and I go right out and start it up because of something simple.
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Tuesday, November 17th, 2020 AT 7:48 AM
Tiny
MATTSPA123
  • MEMBER
  • 11 POSTS
Okay.
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Tuesday, November 17th, 2020 AT 8:03 AM
Tiny
MATTSPA123
  • MEMBER
  • 11 POSTS
Can I buy this at Harbor Freight to test the fuel pump?
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Tuesday, November 17th, 2020 AT 8:06 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Yes, you can. They have a nice set that is inexpensive.

Roy
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Tuesday, November 17th, 2020 AT 9:55 AM
Tiny
MATTSPA123
  • MEMBER
  • 11 POSTS
Thanks.
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Tuesday, November 17th, 2020 AT 9:56 AM
Tiny
ASEMASTER6371
  • MECHANIC
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Anytime.

Let me know if you have any other questions.

Roy
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Tuesday, November 17th, 2020 AT 9:58 AM

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