wierd car story(my car)

[B2ThaZiZza]

Insight before story 85degrees,4:30pm, just got back from driving to the store for 10mins.

Ok like i said i drove to the store which took me 5mins to get there and another 5 to get home. I get to my drive way and i park my car on the curb and go into my garage to get my jackstands and jack and some tools so i can change my o2 sensor. I start my car up to back it up a little and all of a sudden the car starts burbling like a subaru boxer engine and the car idles like shit and has no power :? , so im like WTF so i drive it around the block and it only makes the sound before AND after 3k rpms so i park infront of my house change the o2 sensor and start the car up and it still does the same. This morning i thought the timing was off or the injsectors where dirty so i got my trusty Hanes/Bentley manuals and get ready to get dirty. I start my car up to back it out a little and there is no wierd subaru boxer engine sound coming form the car so i let it warm up drive it around the block and everything runs fine and the engine pulls hard and the idle is steady. :?:

[aaron_silva]

Yay from problems that fix themselves!

Aaron

[uflnuceng]

It'll be back tomorrow.

[B2ThaZiZza]

everyone knock on wood now!! don't jinx my car.

[Digitalwave]

I have found that problems that fix themselves come back 10 times worse the next time.

[golde30]

can u even rev the motor when its having this mystery problem? my car gets this funky idle problem every so often for no reason, and i have to reset my battery to fix it, i know it has to be electrical. but with mine it becomes all but undriveable.

[B2ThaZiZza]

i can rev it but it makes the wierd boxer engine sound until i get to 3k then its sounds normal. seems fine now i will drop by my mechanics shop to take a look just in case.

[SebSter]

did you check for any air leak or loose sparkplug wires? sometimes its the simple things people overlook and just jump to more complicated conclusions.

[thejimlab]

Is your cat clogged? My car had very similar problems when the cat went.

[B2ThaZiZza]

no air leak or loose spark wires, im not sure if the cat is clogged but it hasnt been changed and the boxer engine has come back to my car again.
I noticed yesterday while i was replacing my o2 sensor that the shield or whatever it is on the cat is a little loose and there are some scrapes not big ones but there is a scrape on the cat and resonator. could that maybe be the problem?

[Digitalwave]

no air leak or loose spark wires, im not sure if the cat is clogged but it hasnt been changed and the boxer engine has come back to my car again.
I noticed yesterday while i was replacing my o2 sensor that the shield or whatever it is on the cat is a little loose and there are some scrapes not big ones but there is a scrape on the cat and resonator. could that maybe be the problem?

I doubt it. My cats look like a battle ground, and they are fine.

[golde30]

no air leak or loose spark wires, im not sure if the cat is clogged but it hasnt been changed and the boxer engine has come back to my car again.
I noticed yesterday while i was replacing my o2 sensor that the shield or whatever it is on the cat is a little loose and there are some scrapes not big ones but there is a scrape on the cat and resonator. could that maybe be the problem?

I doubt it. My cats look like a battle ground, and they are fine.

yah, scrapes on yer exhaust wont hurt anything, and as far as a clogged cat, well, if you drive anything like me, nothing is gonna get stuck in the pipes... i say check yer plugs and cap/rotor.

how would one go about checkin for air leaks...cant really LISTEN for them....m20 is a lil too loud for that....

[hamann318is]

no air leak or loose spark wires, im not sure if the cat is clogged but it hasnt been changed and the boxer engine has come back to my car again.
I noticed yesterday while i was replacing my o2 sensor that the shield or whatever it is on the cat is a little loose and there are some scrapes not big ones but there is a scrape on the cat and resonator. could that maybe be the problem?

I doubt it. My cats look like a battle ground, and they are fine.

yah, scrapes on yer exhaust wont hurt anything, and as far as a clogged cat, well, if you drive anything like me, nothing is gonna get stuck in the pipes... i say check yer plugs and cap/rotor.

how would one go about checkin for air leaks...cant really LISTEN for them....m20 is a lil too loud for that....

He has a M42. No cap or rotor.

[golde30]

HAHA, oops didnt even notice that. our problems are completely unrelated then.... :roll: