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car's got issues.
I took my 944 out yesterday afternoon; I was going for a run at a nearby wildlife sanctuary, which is about 2.5 miles from my house. Car ran fine on the way there.
After my run, I started her up and noticed that she was running a little noisier than usual. I popped the hood, and sure enough there was some kind of rattle coming from somewhere in the engine bay. I couldn't locate exactly where, however. After about 2 minutes of idling, the rattle seemed to subsist. I also noticed that my fuel guage showed a little less than 1/4 of a tank remaining... i decided to make the gas station my next stop. On my way, the car started stumbling a bit, as if it wasn't getting enough fuel. It was almost choking. I pulled over, and the car was idling much lower than normal, still choking, at about 600rpm. I turned off the engine, and tried starting it again. It would almost turn over, but not quite. I let it sit for a moment and started it again. It started, so i drove it home and parked in the garage. Later that night, before I had to go to class (i drove the Olds, needless to say), I started up the 944... it started right up, but there was that rattle again! This morning I did the same, and it started up and ran smoothly... and with no rattle. When I shut the car off this morning, however, there was some kind of rattle as the engine turned off and came to rest. I started it again and got the same result. It almost sounded like something was loose. Now, since I never let my gas tank drop below 1/4 tank, my first instinct tells me that there is just some sludge/moisture at the bottom of the tank, and letting it run through caused this stumbling... but that doesn't explain that rattling. Any ideas? Is the rattling just a coincidence, and an unconnected problem?
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Current Stable: Black 07 Porsche 987 Cayman S: Long-Tube Headers; FabSpeed Exhaust; VividRacing ECU Tune; IPD Plenum; 997GT3 Throttle Body. Blue 1983 Porsche 928S. 1985.5 Porsche 944 Rat Rod. 2011 Acura MDX. 2008 Mazda 3. Gone But Not Forgotten:Garnet Red 86 Porsche 951("The Purple Pig"). Alpine White 83 Porsche 944 ("Alpine Wolf"). Guards Red 84 Porsche 944. |
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04-27-2005, 08:08 AM
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Feelin' Solexy
Join Date: Oct 2003
Location: WA
Posts: 3,802
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When you say "it almost turned over" do you mean it almost started (engine turning over but not catching), or that the engine literally didn't quite manage to turn over?
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Grant In the stable: 1938 Buick Special model 41, 1963 Solex 2200, 1973 Vespa Primavera 125, 1974 Vespa Rally 200, 1986 VW Vanagon Syncro Westfalia, 1989 VW Doka Tristar, 2011 Pursuit 315 OS, 2022 Tesla Y Gone but not forgotten: 1973 VW Beetle, 1989 Porsche 944, 2008 R56 Mini Cooper S |
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04-27-2005, 08:23 AM
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Writer/Teacher
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it felt like it was just about catching, but didnt have enough gas or something to stay running
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Current Stable: Black 07 Porsche 987 Cayman S: Long-Tube Headers; FabSpeed Exhaust; VividRacing ECU Tune; IPD Plenum; 997GT3 Throttle Body. Blue 1983 Porsche 928S. 1985.5 Porsche 944 Rat Rod. 2011 Acura MDX. 2008 Mazda 3. Gone But Not Forgotten:Garnet Red 86 Porsche 951("The Purple Pig"). Alpine White 83 Porsche 944 ("Alpine Wolf"). Guards Red 84 Porsche 944. |
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04-27-2005, 10:43 AM
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Registered
Join Date: Jun 2003
Location: Phoenix, AZ
Posts: 1,327
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sounds like a fuel filter clogging.
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87 951, K27/6, Almond Beige, 17" Turbotwist 87 944S, alpine white, 5sp died a violent death 84 944, silver/brown, auto, gone but not forgotten "may the force be with you" |
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04-27-2005, 10:51 AM
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Registered
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That's some noisy gas!
Rattles are from moving/rotating objects. Belt pullies and rollers, alternators, power steering, V-belt pulley on the front of the crank may be loose. Cam pulley may be loose.
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Hugh - So Cal 83 944 Driver Person NOT a 'real' Porsche -- Its Better!!!! When was the last time you changed your timing and balance belts and/or cam chain and tensioner? New Users please add your car's year and model to your signature line! Never break more than you fix! |
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04-27-2005, 11:14 AM
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Writer/Teacher
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Yeah i think there is something loose... but I ALSO think there is a gas-related issue. Whether the two are mutually-exclusive has yet to be seen.
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Current Stable: Black 07 Porsche 987 Cayman S: Long-Tube Headers; FabSpeed Exhaust; VividRacing ECU Tune; IPD Plenum; 997GT3 Throttle Body. Blue 1983 Porsche 928S. 1985.5 Porsche 944 Rat Rod. 2011 Acura MDX. 2008 Mazda 3. Gone But Not Forgotten:Garnet Red 86 Porsche 951("The Purple Pig"). Alpine White 83 Porsche 944 ("Alpine Wolf"). Guards Red 84 Porsche 944. |
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04-27-2005, 01:33 PM
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Banned
Join Date: May 2004
Location: Mountains of WNC
Posts: 2,986
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Use a breaker bar or piece of metal pipe as a stethoscope.
Place in various (safe) places on the engine with your ear to it, great tool for finding bad bearings, rattles, etc. |
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04-27-2005, 03:11 PM
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2007 Porsche Cayman S
The Viridian Falcon
SOLD! -- The Purple Pig
SOLD! -- Mighty Mouse
SOLD!! -- Alpine Wolf
1983 Porsche 944 2.5 liter
