Car missing when up shifting

Mazdaspeed96743 · Post by **Mazdaspeed96743** » April 16th, 2005, 1:58 am

Okay, My car is a 94 Mazda MX-3 4-Cylinder only mods I did to it is put a Sebring Tuning 3" Exhaust on it in case some of you might not know and everytime I up-shift, accelerate the car misses like V-r-r-r-r-r-r-o-o-o-o-m. This is the 3rd time it happened to me. I keep going to the Mazda mechanic place and they changed the O2 Sensor. was fine until two weeks later it did it again. took it back to the shop. they changed the cap and rotor and the car was fine until three weeks later. Is it because the car is too old?, Is it because my Exhaust is too old and I need a new exhaust?. Please help me someone.

ManoWar · Post by **ManoWar** » April 16th, 2005, 2:25 am

Check ur clutch disk (hope thats the good translation)
If it only happens in second gear.... is it accompanied by a squish sound right before?

Might be the 2nd gear lost some teeth

Mazdaspeed96743 · Post by **Mazdaspeed96743** » April 16th, 2005, 2:46 am

Okay thanks. and it does this on first second and sometimes third. Like I shift to 3rd, car goes vr-r-r-rrr-r-r-rrrr-r so I shift back to second and its fine.

snellgrove · Post by **snellgrove** » April 16th, 2005, 7:14 am

is this on an auto or a manual?

Ricksmx3 · Post by **Ricksmx3** » April 16th, 2005, 8:38 am

Mazdaspeed96743 wrote:only mods I did to it is put a Sebring Tuning 3" Exhaust on it .

Question...why in the world did you go so big??

Robotaz · Post by **Robotaz** » April 16th, 2005, 7:00 pm

Change the plugs if you don't know how old they are and make sure the gap is right, then go to the online shop manual on this site and troubleshoot it.

mazdubber · Post by **mazdubber** » April 16th, 2005, 7:15 pm

Ricksmx3 wrote:
Mazdaspeed96743 wrote:only mods I did to it is put a Sebring Tuning 3" Exhaust on it .
Question...why in the world did you go so big??

He's 15.

Ricksmx3 · Post by **Ricksmx3** » April 16th, 2005, 8:17 pm

mazdubber wrote:
Ricksmx3 wrote:
Mazdaspeed96743 wrote:only mods I did to it is put a Sebring Tuning 3" Exhaust on it .
Question...why in the world did you go so big??
He's 15.

Oh ok didnt notice that. Rookie mistake.

johnboi85 · Post by **johnboi85** » April 16th, 2005, 9:03 pm

Ricksmx3 wrote:
mazdubber wrote:
Ricksmx3 wrote: Question...why in the world did you go so big??
He's 15.
Oh ok didnt notice that. Rookie mistake.

that reminds me of a friend of mine with a 240sx. he wanted a 3" exhaust so he can sound cool. lol

Mazdaspeed96743 · Post by **Mazdaspeed96743** » April 16th, 2005, 10:07 pm

I have bought the car with the exhaust on it.

Mazdaspeed96743 · Post by **Mazdaspeed96743** » April 16th, 2005, 10:08 pm

snellgrove wrote:is this on an auto or a manual?

Manual transmission. sorry..

Ricksmx3 · Post by **Ricksmx3** » April 16th, 2005, 10:18 pm

You really need to get it changed then. Because if anything you are loseing the little bit of power the car has.

Mazdaspeed96743 · Post by **Mazdaspeed96743** » April 16th, 2005, 10:22 pm

So change clutch, spark plugs?

Ricksmx3 · Post by **Ricksmx3** » April 16th, 2005, 10:32 pm

Try doing the easy stuff first to see if that will fix it. Change your plugs and plug wires and if it still does it i would try the disty before the clutch.
Cause i know in our cars the disty is one of the most common things to fail mine did 2 weeks ago. So try those first and if it still dosent fix the problem then go for the clutch.

mxmaz · Post by **mxmaz** » April 17th, 2005, 12:05 am

I wouldnt just start replacing things just cause it might be the problem. Take it to a shop that gives free quotes and see what they tell you and come back here and let us know how it goes.

MX-3.com

Car missing when up shifting

Car missing when up shifting

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