1998 S70 T5 Sputters at Idle. on braking, poor acceleration

Post by **jblackburn** » 22 Jul 2013, 14:02

Look for a blown off or busted intercooler hose. Kinda sounds like one may be loose - start with the small one at the turbo and follow them on back to the bottom of the intercooler, then back to the throttle body.

tatsnturbos · Post by **tatsnturbos** » 22 Jul 2013, 14:25

Awesome, I'll take a look for that too. I'll let you guys know how things go.

tatsnturbos · Post by **tatsnturbos** » 27 Jul 2013, 15:17

Update, I replaced the fuel filter. Very noticeable improvement now with acceleration,not sputtering when I brake anymore. Still rough on idle. Any suggestions? Right now it's idling at 950, what is it supposed to idle at once warmed up at normal temperature? No ac or heater on.

Post by **jblackburn** » 27 Jul 2013, 15:46

850-950.

CEL on? The 5-cylinders just idle kinda rough at idle.

Bump it into Neutral at idle and see if the idle smooths out. If this is the case, it's time to replace the lower engine mount and possibly the transmission one as well

tatsnturbos · Post by **tatsnturbos** » 29 Jul 2013, 09:01

CEL on and sometimes it flashes. It never used to idle THIS rough before.

Post by **jblackburn** » 29 Jul 2013, 09:05

Still misfiring then.

Back to checking for air/boost leaks. I'm kinda wondering if replacing the MAF/resetting the battery just got the car "used to" running with an air leak.

tatsnturbos · Post by **tatsnturbos** » 29 Jul 2013, 10:02

Sorry, forgot to let you guys know, that now there is only a misfire on cylinder three and no longer on three and five. My upper engine mount is completely done, could this be a contributor?

Post by **jblackburn** » 29 Jul 2013, 10:07

No.

I'd run a compression test on #3.

tatsnturbos · Post by **tatsnturbos** » 29 Jul 2013, 10:36

Will do! Will update when done.

speedyucf · Post by **speedyucf** » 29 Jul 2013, 20:24

Are they sure the plugs and coils are good?

1998 S70 T5 Sputters at Idle. on braking, poor acceleration

Re: 1998 S70 T5 Sputters at Idle. on braking, poor accelerat