No start no spark - 2004 Mazda RX8

Tiny
TCHANGALAN
  • MEMBER
  • 4 POSTS
Hello thank you for your help so I think that's normal I should have a problem with compression I find the front rotor work better than the one behind it is normal?
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Monday, April 13th, 2020 AT 12:57 PM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
Both rotors should have almost the same compression and works equally.
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Monday, April 13th, 2020 AT 12:57 PM (Merged)
Tiny
SAMMILLS99
  • MEMBER
  • 2 POSTS
  • 2004 MAZDA RX8
  • 1.3L
  • RWD
  • MANUAL
  • 75,000 MILES
If I leave my vehicle for 2+ days, for example over the weekend, when I go to start it, it really struggles. The last time I left it for 3 days without driving it. On 1st & 2nd attempt of starting all I got was the sound of relays clicking. Each attempt after that it improved turning over until eventually starting on the 7th attempt. I drive to work and back in it during the week(25 miles e/w) and never have this problem during the week. All throughout the week it fires up first time. It's only on Monday morning when I go to start it that this happens after not driving it on the weekend. I always shut down the car properly as advertised for this car and have had the battery replaced in the last year.
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Monday, April 13th, 2020 AT 12:57 PM (Merged)
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Check battery for condition including load test autoparts tire stores do for free. Even if new doesn't mean they are good. Then have battery checked for a draw. If you want to do your self go to how to repair electrical battery item 9
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Monday, April 13th, 2020 AT 12:57 PM (Merged)
Tiny
TCHANGALAN
  • MEMBER
  • 4 POSTS
I must replace an engine in britain find it really is expensive thank you for you help
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Monday, April 13th, 2020 AT 12:57 PM (Merged)
Tiny
SAMMILLS99
  • MEMBER
  • 2 POSTS
Thanks for your timely response. I will be doing this soon. One thing I forgot to mention was I left the battery disconnected one weekend and the car did exactly the same if that makes a difference?
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Monday, April 13th, 2020 AT 12:57 PM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
You're welcome.
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Monday, April 13th, 2020 AT 12:57 PM (Merged)
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Get it tested anyhow idoubt that that is the problem
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Monday, April 13th, 2020 AT 12:57 PM (Merged)
Tiny
LEPHTEE
  • MEMBER
  • 1 POST
  • 2004 MAZDA RX8
Engine Mechanical problem
2004 Mazda RX8 Two Wheel Drive Manual 34000 miles

RX8 may be flooded, but how do I fix this?
Thank you lephtee
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Monday, April 13th, 2020 AT 12:57 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
1. Excessive fuel pressure can be cause by restricted fuel return line or defective fuel pressure regulator.
2. Defective Oxygen Sensors.
3. Leaking injectors and fuel pressure regulator.
4. Coolant temperature sensor out of calibration.
5. Restricted air intake system.
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Monday, April 13th, 2020 AT 12:57 PM (Merged)
Tiny
ABABCO1
  • MEMBER
  • 3 POSTS
  • 2004 MAZDA RX8
  • 2.6L
  • 2WD
  • MANUAL
  • 84,000 MILES
I have recently replaced the clutch pedal due to the manufacturers defect of the support bracket snapping at the weld points. The new pedal is in and seems to be working properly. The battery had drained while sitting for a week and 1/2 while waiting for new pedal to be delivered. The battery is fully charged however I am not getting any turn over when trying to start the car. I am thinking this is due to an adjustment issue with the pin that compress the Hydraulic clutch. Am I in the right ballpark or do I need to be concerned about alternator or a starter issue. The car was performing perfectly before the pedal issue. Thank you for your assistance.
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Monday, April 13th, 2020 AT 12:57 PM (Merged)
Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
Does all the dash lights come on with the key?If so sounds like a issue with the clutch switch not getting pressed all the way in with the clutch pedal pressed all the way down.
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Monday, April 13th, 2020 AT 12:57 PM (Merged)
Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
Do you have a multi meter to do some testing?
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Monday, April 13th, 2020 AT 12:57 PM (Merged)
Tiny
ABABCO1
  • MEMBER
  • 3 POSTS
Its the clutch safety switch. Keep the 5 bucks
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Monday, April 13th, 2020 AT 12:57 PM (Merged)
Tiny
ABABCO1
  • MEMBER
  • 3 POSTS
Its the safety switch. Its not compressing far enough to complete the circuit
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Monday, April 13th, 2020 AT 12:57 PM (Merged)
Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
Glad to hear you got it figured out thats what we like to hear.
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Monday, April 13th, 2020 AT 12:57 PM (Merged)
Tiny
SCOTTE123
  • MEMBER
  • 6 POSTS
  • 2004 MAZDA RX8
  • 2.6L
  • RWD
  • MANUAL
  • 59,300 MILES
My rx8 231 2004 59300 miles on clock broke down due to mis Fire chamber 1 according to the code its p0301 it would not start and felt like a spark plug or lead may be down when recovery came restarted car and it made a loud noise when revving and a loud slapping noise then would not Rev above 1000rmp with foot to the floor on excellerator? When put put gear not change but car just stalls if you take foot off pedel or try to move. When checking spark plugs day after recovery one of the leading plugs had loads of rust on the end which sticks out of the block but totally confused what to do as I cannot move the car even to a garage to have it looked at?
Any help would be appreciated
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Monday, April 13th, 2020 AT 12:57 PM (Merged)
Tiny
MHPAUTOS
  • MECHANIC
  • 31,938 POSTS
This is a misfire code No1 cylinder, start with a compression test and let me know what the readings are, do a wet and dry test, a wet test is with a small amount of oil in the cylinder, advise reading for both tests for further assistance.
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Monday, April 13th, 2020 AT 12:57 PM (Merged)
Tiny
SCOTTE123
  • MEMBER
  • 6 POSTS
Thanks for the reply however the car will not Rev above 1000 rpm and feels like there is a blockage in the car and strange noises like a slapping sound coming from that area.
My plan is to see if the cat has broke as I believe the miss fire could of blown the cat leading to the issues what do you think ad I will struggle to get a compression test as I can't move the car any suggestions
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Monday, April 13th, 2020 AT 12:57 PM (Merged)
Tiny
MHPAUTOS
  • MECHANIC
  • 31,938 POSTS
You can unbolt the cat and see if the engine will rev out, if so replace the cat and then address the misfire.
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Monday, April 13th, 2020 AT 12:57 PM (Merged)

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