2000 s70 stumbling sound

nikolayy · Post by **nikolayy** » 01 Aug 2007, 16:49

ok please help me out here....
my car 2000 s70 is making this stumbling sound...its not like all the time but especially when I'm slowing down and accelerate after I can here or feel this stumbling or cracking which I think is coming from the engine or something very close to it......pls give me some ideas........thanks

Post by **Ozark Lee** » 01 Aug 2007, 19:29

Since I'm not sure where you are from and, as such, don't know how to tailor the question, is your Check Engine or Lambda light on?

If so, you need to have the codes checked and cleared, it can often pinpoint the problem.

If you have codes please post them. That will help us narrow down your problem quickly.

Other common items that result in your problem is spark plugs, spark plug wires, distributor cap, distributor rotor, fuel filter, vacuum leaks,

nikolayy · Post by **nikolayy** » 01 Aug 2007, 19:51

thanks for the answer.......
i don't have any light on and i recently ran obd2 and it didn't detect any codes............
Thanks!!!

nikolayy · Post by **nikolayy** » 02 Aug 2007, 07:47

do I have to have any cods showing for the problems you post allready....if I don't have any what is the most common problem that caused that....thanks

Post by **MadeInJapan** » 02 Aug 2007, 14:53

No codes but stumbling or "cracking" sound? The cracking is something that concerns me and I'd like to know more about this sound- what you mean exactly... If it happens as you let off the gas it could be the exhaust manifold that is loose from the rest of the exhaust and thus needs tightening, or in the worst case, it could be cracked....certainly seems to me that your problem might be related to some type of back pressure issue...especially if you have no codes. It would take getting under your car and looking (heat shield off) to see if your manifold/exhaust connection could be the problem.

nikolayy · Post by **nikolayy** » 03 Aug 2007, 12:47

when i'm applying breaks to stop sign /let say/ and accelerating after the engine just make this sound like skiping one gear or something like that.....it doesn't feel good
just now i'm dealing with the sparkling plugs and I will do fuel injector cleaning.....let see what happens

p.s. Lee you are the best.....thanks man