Author Topic: does this sound strange to anyone?  (Read 2341 times)

October 18, 2004, 07:39:15 pm

ricosuave

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does this sound strange to anyone?
« on: October 18, 2004, 07:39:15 pm »
What happened in this post:

http://vwdiesel.net/phpBB/viewtopic.php?t=528

Now, my car tends to idle faster.  What normally would be a cold idle w/out handle @ ~900 is now ~950.  What normally would be a cold idle w/handle @ ~1000 is now ~1050.  And my normal warm-engine idle was ~1000, is now 1050, sometimes 1100.

Any ideas?


Now: 00 2dr Golf TDI, 03 Jetta Wagon TDI, 02 2500HD Duramax - :)
Then: 69 SC Transporter, 84 Rabbit GTI, 87 Fox GL, 91 Golf IDI, 96 Passat Wagon TDI, 97 Jetta IDI - :(
"Everything I save by driving diesel I put back due to poor German engineering and crappy Mexican workmanship!"   :P

Reply #1October 18, 2004, 08:35:54 pm

Hammy

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does this sound strange to anyone?
« Reply #1 on: October 18, 2004, 08:35:54 pm »
Rico;
 You didn't by chance happen to change the alternator belt recently. If the belt was thinner and fit  deeper into the pulley, it would read at a higher rpm. Vice-versa, if the belt was wider, it would rider further out from the center spinning the alternater slower. I realise that you just had your fuel tank flushed out , due to the gasoline fill up, but I would hate to see you chasing ghosts. I recently had this problem concerning my belt. That is why I mention it. Reading what happenned with the fuel issue, personally I wouldn't be that worried. Seeing as you never ran the engine on the gasoline at all, I really don't see how any of it would get into the fuel filter(let alone the engine) unless it wasn't all drained out. Also, I wouldn't be surprised if your owners manual mentions running some gasoline during the (cold) winter months, to prevent fuel gelling. Best of luck!
Hammy (Jason)
'96 Golf, 1.8 gas
'91 Golf, 1.6 TD
'98 GMC 1500 4x4, 5.7L (doing my best to save the oil companies, 85 liters takes me 600 km)
'78 Ford 3000 3cyl, 201 diesel, with loader

Reply #2October 18, 2004, 08:38:49 pm

Hammy

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does this sound strange to anyone?
« Reply #2 on: October 18, 2004, 08:38:49 pm »
Rico;
 Where do you reside?
Hammy (Jason)
'96 Golf, 1.8 gas
'91 Golf, 1.6 TD
'98 GMC 1500 4x4, 5.7L (doing my best to save the oil companies, 85 liters takes me 600 km)
'78 Ford 3000 3cyl, 201 diesel, with loader

Reply #3October 18, 2004, 09:02:34 pm

QuickTD

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does this sound strange to anyone?
« Reply #3 on: October 18, 2004, 09:02:34 pm »
Has the weather turned cold where you are? The cold tends to increase fuel density. Increased fuel density leads to a slighly greater injected quantity and a slightly higher cold idle.

Reply #4October 18, 2004, 10:37:18 pm

ricosuave

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does this sound strange to anyone?
« Reply #4 on: October 18, 2004, 10:37:18 pm »
hi all,

thanks for the tips.

no, i havent replaced the alt belt, although I do have to soon.

and quick, yes it has turned cold here in calgary, probably for the first time since last spring.

i guess i'm being paranoid about the 'gas' thing.

rico
Now: 00 2dr Golf TDI, 03 Jetta Wagon TDI, 02 2500HD Duramax - :)
Then: 69 SC Transporter, 84 Rabbit GTI, 87 Fox GL, 91 Golf IDI, 96 Passat Wagon TDI, 97 Jetta IDI - :(
"Everything I save by driving diesel I put back due to poor German engineering and crappy Mexican workmanship!"   :P

Reply #5October 21, 2004, 01:10:26 am

gldgti

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does this sound strange to anyone?
« Reply #5 on: October 21, 2004, 01:10:26 am »
ive heard stories about truck racers putting lots of petrol (gasoline) in their diesel to clean out fuel system, up to the point where revving the engine results in a long plume of flames shooting from the exhaust pipe...

wouldnt reccommend it though  :wink:
'77 Golf LS 4 door twincharger project
'91 Golf Cabrio 1.9TD
'94 Golf TD - AAZ, 2.5" Mandrel DP and exhaust, Merc T3 1.6TD boost pin, FMIC, Koni suspension, VR6 Brakes, VR6 Seats, VR6 sway-bars - sadly missed
'07 SKODA Octavia 1.9 TDI PD - Remapped ECU

 

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