Running Rough

techy101 · #1 06-25-2007, 02:38 PM

My SVX seems to be running more roughly than it used to. It's seeming to have a bit of trouble turning over some of the time. Like I have to crank for quite a while. And when it's first fired up it feels a bit like it wants to stall. It doesn't, but it does shake the whole care pretty good.

As soon as you give it gas it seems to calm down, until it comes back to idle. After about 5 minutes it pretty much settles down. Also, it seems to be somewhat low on power.

I changed out all the fluids, and re-checked that they're all at the right levels. I'd swapped out the water pump and had to take off the timing belt. I believe that I got it on correctly, but if I had it off by a tiny tiny bit could it cause these symptoms?? Or could that or the alternator belt being to tight cause it??

Thanks,
Matthew

Fiziks · #2 06-25-2007, 04:29 PM

the svx i just bought does the same exact thing. . . check your catalytic converters. . .

on mine the 3rd one got plugged up from old fuel that was in the vehicle from sitting at the dealership for 1+ yrs.

surprised none of you found out about it for as long as it sat there

I was eyeing it last summer and finally decided to take her this summer.

oh yeah. . . budfreak has replacement cats for $80 i think and shipping is $20

techy101 · #3 06-25-2007, 04:45 PM

Silly question, but how would one check them?

Suby Fan · #4 06-26-2007, 11:42 AM

Quote:

Originally Posted by techy101

My SVX seems to be running more roughly than it used to. It's seeming to have a bit of trouble turning over some of the time. Like I have to crank for quite a while. And when it's first fired up it feels a bit like it wants to stall. It doesn't, but it does shake the whole care pretty good.

As soon as you give it gas it seems to calm down, until it comes back to idle. After about 5 minutes it pretty much settles down. Also, it seems to be somewhat low on power.

I changed out all the fluids, and re-checked that they're all at the right levels. I'd swapped out the water pump and had to take off the timing belt. I believe that I got it on correctly, but if I had it off by a tiny tiny bit could it cause these symptoms?? Or could that or the alternator belt being to tight cause it??

ok to answer your questions first... no if your timing belt was off a tooth it would run very rough and have little to no power at any engine speed... remember mechinical things are very consistant when they fail. if i alternator belt was too tight then the engine wouldnt run any diffrent (keeping in mind im excluding extreme cases) but one of the bearings for your pullies would fail prematurely. it sounds you could have any number of things wrong with your car so we can start with is your check engine light on?

techy101 · #5 06-26-2007, 01:26 PM

Whoops, should have mentioned that. No, I'm not getting any kind of CEL, and the light does work.

Suby Fan · #6 06-27-2007, 06:15 AM

do you have the ability to check your fuel pressure?

Sir. Nate · #7 08-20-2007, 04:47 AM

Hi all. I'm having the same problem with my '92. The CEL does go on for me.

subru92svx · #8 08-20-2007, 06:46 AM

The way I was told to test a catalytic converter at school is to get the car up to opperating temperature then check the temperature before and after the catalytic converter with a pyrometer. There is suppose to be a certain temperature difference between the two, but I can't remember how much it was. If I am wrong someone feel free to correct me.