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1997 Mazda 323 chuggish and misfiring

Tiny
MAZDA MAHEM
  • MEMBER
  • 1997 MAZDA 323
I have a 1997 Mazda 323 GXi (1500cc) with 92,000 miles on the clock.

When the engine is cold I have no problems with it but as soon as the engine starts to warm up it starts chugging and does not want to accelerate, it sometimes misfires. It is especially bad in 1st and 2nd gear.

I have had a new disributor cap, rotar arm, air filter, plugs and leads.

I have had it put on the diagnostics computer at the Mazda garage but they have not been able to find what the problem is.

Any ideas? I love my car and just want her to get better.
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Wednesday, September 19th, 2007 AT 9:49 AM

7 Replies

Tiny
SERVICE WRITER
  • MECHANIC
  • 9,123 POSTS
I would try an intake cleaning with a product called seafoam. Directions are on the container. But will elaboate if needed.
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Wednesday, September 19th, 2007 AT 10:15 AM
Tiny
MAZDA MAHEM
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  • 4 POSTS
Hey, thanks for the speedy response but I am in the UK and unfortunately we cannot get Seafoam here.
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Wednesday, September 19th, 2007 AT 10:57 AM
Tiny
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  • MECHANIC
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Send me a link to the auto parts stores you have there and I'll go from there.
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Wednesday, September 19th, 2007 AT 11:04 AM
Tiny
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  • MECHANIC
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With the choices given, I might try this one, IF you can raise the idle a little it will help the procedure. Take off the vacuum hose going from the intake to the brake booster at the booster. SLOWLY add the treatment to the vacuum hose, very slowly. This may help clean the intake valves and remove some of the fuel sucking carbon. May want to add one to the tank as well. I don't know if thses chemicals are going to be strong enough as I haven't seen or used them.

If you can get some acetone, that may work as well. While it makes me a little nervous I have talked to guys that have added directly to the fuel tank as well. I wouldn't use a lot.
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Wednesday, September 19th, 2007 AT 5:37 PM
Tiny
MAZDA MAHEM
  • MEMBER
  • 4 POSTS
Sorry, I couldn't see a recommended product in your post.

Is there a product I could use from one of the auto stores I showed you?

Once again, I really appreciate your help.
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Thursday, September 20th, 2007 AT 3:56 AM
Tiny
MAZDA MAHEM
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  • 4 POSTS
No worries :lol:

Thanks, I'll give it a shot.

Fingers crossed :)
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Thursday, September 20th, 2007 AT 4:45 AM
Tiny
COLINSMURPH
  • MEMBER
  • 2 POSTS
Hi, I had a very simular problem, I got a frend to hold the throttel ope a littel, and disconected each injector electronics wires one by one untill I found one that made no difference to engine idel speed, (turned out to be faulty injector wire harness )
(I cleaned the injectors any way)
All sorted! Good luck with getting it sorted.
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Saturday, March 29th, 2008 AT 5:47 AM

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