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#1
10-23-2013, 05:50 PM
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Odd acceleration issue
'83 300D Turbo
So the gf said that her car will start to slow down from 55 and get slower and slower while driving sometimes and I actually experienced the issue just now. The car would not accelerate at all. I pressed the accelerator and it kicked down but it felt like the car was pushing a brick wall. At the gas station I checked the brakes for excessive heat and the fronts were normal and the rears were cool. The clear inline filter showed a little bit of gunk so I'm going to swap that out and hopefully I have a spin on filter and can see what happens. She just filled the tank so I really can't remove the tank strainer. Any ideas or am I on the right track? 
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#2
10-23-2013, 06:08 PM
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Sounds like fuel starvation. You're on the right track. Did you see if the fuel tank vent is clogged?
__________________
Whoever said there's nothing more expensive than a cheap Mercedes never had a cheap Jaguar. 83 300D Turbo with manual conversion, early W126 vented front rotors and H4 headlights 400,xxx miles 08 Suzuki GSX-R600 M4 Slip-on 22,xxx miles 88 Jaguar XJS V12 94,xxx miles. Work in progress.
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#3
10-23-2013, 06:13 PM
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remove the fuel tank cap and see if you get a swoosw sound if you do it is the bell shape tank vent under the car near the drives seat take off and clean. In the past with me it has been the prefilter.
__________________
Moss Gate Bed & Breakfast 1985 300 TD GG done in by a red light runner  1984 300 CD Sold  2008 Titian 2000 Cadillac SLS 1966 FLH Sold 2003 Harley Ultra
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#4
10-23-2013, 06:18 PM
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I'll try that when. I get home. Totally forgot about that bugger
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#5
10-23-2013, 07:19 PM
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Clean the banjo bolt and line from the intake manifold to the ALDA on the IP.
__________________
Greg 2012 S350 BlueTEC 4Matic 2007 ML 320 CDI 2007 Leisure Travel Serenity 2006 Sprinter 432k 2005 E320 CDI 1998 SLK230 (teal) 1998 SLK230 (silver) 1996 E300D 99k, 30k on WVO Previous: 1983 240D, on WVO 1982 300D, on WVO 1983 300CD, on WVO 1986 300SDL 237k, 25k on WVO (Deerslayer) 1991 350SDL 249k, 56k on WVO - Retired to a car spa in Phoenix 1983 380 SEC w/603 diesel, 8k on WVO 1996 E300D 351k, 177k on WVO
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#6
10-23-2013, 07:28 PM
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I just went through a year long experience with a backed out IP timing shaft bolt. -yes it was torqued.
No indication of unburnt fuel or issues starting. Low power (timing off) most noticeable after initial take off. The car I pulled parts from (someone's project car) also had a backed out bolt but the shaft was still keyed to the timer and the shaft was fractured!
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#7
10-23-2013, 08:07 PM
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Quote:
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#8
10-23-2013, 08:37 PM
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I was thinking maybe some bad fuel. Still acceleration off the line should have been impacted. Take a smell of the tank to see if gas was accidentally loaded.
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#9
10-23-2013, 09:16 PM
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What you are describing is very similar to what happened to me recently. Inline prefilter clogged with small blank chunks. Fuel starvation only occurred a couple of times before I figured it out and replaced the filter. Just cruising along at 73 and want to pass someone, step on the skinny pedal and voila...brick wall and then even some loss of power. Most unnerving. But easy to remedy.
__________________
"Frau Blue Car" 1980 240D think Frau Bluker, cue the horses, formerly known as "China" from JimmyL "Gunther" 1982 300D.....Turbo!! A/C!! Sunroof!! "Fraulein" 1975 240D----Donated to NPR
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#11
10-23-2013, 10:06 PM
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Seems like the right track. I had an issue with a leaky shutoff valve on the key switch
that led to vacuum leaking into the shutdown circut causing the slows so check that possibility.
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#12
10-23-2013, 10:22 PM
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Did she put gas in the tank?
Could be a linkage issue, how is the throttle pivot pushing on the firewall?
__________________
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#14
10-24-2013, 08:43 AM
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#15
10-24-2013, 08:46 AM
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