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  #1  
Old 21st September 2006
sangajas sangajas is offline
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Question Strange noise eminating from engine...

I own a 99' 2.3 9-5, and have recently noticed (with the windows down) a rattling sound comming form the engine, whenever I accelerate. i only get this sound when I push the throttle, and its not immidiate, but right around 3000rpm or so, depending on the gear I'm in. It happens in all gears, and feel that I am being shorted hp.
This is my first saab and would appreciate any insight on the mysterious sound, being on how I am young and relatively poor and can't afford taking it to the dealership all the time. I would rather tend to it myself.

thanks to anyone who can shed some light on this.
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  #2  
Old 22nd September 2006
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Loose DI cassette? My car was rattling like crazy when the DI came loose, so take a look.
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  #3  
Old 22nd September 2006
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How many miles on the clock? Does the rattling sound come from the left hand end of the engine as you look into the engine bay?
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  #4  
Old 22nd September 2006
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The two things that commonly make loud rattling noises are broken timing chains and broken clutches. If your car is an automatic we can rule out the clutch.
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  #5  
Old 22nd September 2006
sangajas sangajas is offline
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Question

I have 76K on my clock, and when I hear the noise it sounds to me like its coming from the driver side. But then of course i imagine its because its the window down on my side (left side drive). I have not checked the DI cassette, and will do so today to see if anything is loose.
Wosrt case scenario, if indeed I have a crap clutch and chains, can a moderate DIY mechanic like me fix them. Or would I have to take it to the dealer, and if so, how many limbs should it cost???
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  #6  
Old 22nd September 2006
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Clutches and timing chains really aren't for anybody but a very competent mechanic. Both should run you about $1000 each for parts and labor.
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1999 Saab 9-5 SE 5spd Silver-Green/Sand Beige

Taliaferro Open Intake - Forge Motorsport 007 Recirculating Dump Valve - Remus SaabSport Exhaust - Aero Clutch and PP - Taliaferro Transmission Mount - JSP 3" Downpipe w/ Racecat - JSP Stage III Tuned - Koni Fully Adjustable Shocks - Aero Springs/Sways - Silicone Vacuum Lines - PCV Update #6 - Brand new Fuel Tank and Walbro 255lph Pump - Autometer Boost Gauge - MHI TD04 Big 19T 6cm2 Turbo Awaiting Installation
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  #7  
Old 24th September 2006
sangajas sangajas is offline
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I'll have to check and see if its the DI casette or not, Hope to God that its not my clutch or timing Ch's.
I have already ordered a Forge recirculating dump valve and upgraded the actuator, and would like to, if I'm gonna have to replace it, put an upgraded clutch in. Any advice or tips on would help.

Once again, thanks for the advice everyone.
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  #8  
Old 24th September 2006
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Pretty hard to listen to your noise from here, but is it possible you're just hearing pinging from bad gas?
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  #9  
Old 27th September 2006
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Check that the turnbuckle and jam nut on the actuator arm of the wastegate are tightened.
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