Date: Mon, 19 Jun 2000 06:29:22 GMT From: Mathias <_nopsamm> Subject: Re: 94 9000 turbo problems - Help needed
No, this doesnt sound normal at all. Midway orange is no more that ~0.4bar, base boost level. Should be more even during really hot days. Mike: 1. First check your sparkplugs. Use nothing else than what saab recommends (which should be NGK BCPR7ES-11 even in the US, right?). *Carefully* check the gap and adjust to 1.1mm, nothing more, nothing less. This is important!! 2. If changing/adjusting sparkplugs doesnt help, I would suspect you have a problem with your DI unit. Try to switch no a unit that you know is working, maybe Saab can let you borrow one for an hour or so. 3. Maybe you should also check for headgasket problems. While having removed the DI unit and all sparks, check the cylinders: The top of the cylinder should be dark, not shining metal....if its not dark, you might suspect there is water (from a leaking headgasket) comming in.....not fun. Hope this helps, /Mathias 9000 Aero -91 Andrew wrote: > Turbo: > > What you describe sounds quite normal. Warmer weather detrimentally affects > the ability of the intercooler to cool the pressurized air and the boost > control unit must therefore lower boost levels to aviod detonation. On a > warm summer's day mid way into the orange sounds normal although I've found > that cleaning the intercooler both inside and outside may help its > efficiency a little. > > Andrew > > "Mike" <mike_bush**nopsamo.com> wrote in message > news:ewn25.230$Sf1.102837nopsam.centuryinter.net... > > My 94 9000 cse turbo has two weird problems I thought you folks could > help > > with: > > > > First: I have a 40 mile commute and after starting great and running > great > > in the morning and throughout the commute the car "misses" terribly for > > about two minutes or so when I start the car to go to lunch about 4 hours > > later. The engine shakes and there is very low power. After a couple of > > minutes there is a sudden adjustment and it runs great. > > > > Problem two: in the winter I get great boost from the turbo (just into > the > > red with noticeable power) this time of year I get only midway into the > > orange and there is very little noticeable turbo boost. What could be > > causing this?? > > > > Your advise will be GREATLY appreciated. > > > > Best regards...a safe driving > > > >
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