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Lou Jersey Samba Member
Joined: June 10, 2013 Posts: 2 Location: NJ
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Posted: Wed May 05, 2021 9:12 am Post subject: 1993 Eurovan - Hesitates, sputters, stalls while cruising |
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Question for all of my fellow T4 masochists, as the title states, i have a 1993 eurovan, it is a 5 cylinder, 5spd. Recently while cruising on the highway - at appx 60-70mph, the van started shuttering/hesitating under acceleration, then if i messed with the accelerator, it would smooth back out to only have it occur intermittently for the next 45 minutes until it started running perfectly fine again.
Some additional details - it was raining lightly, i had fueled up about 45 minutes prior. No indicator lights flash or are lit.
Does this ring of a fuel issue (fuel filter?) or electrical issue? neither?
I welcome any opinions and advice. |
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MrPulldown Samba Member
Joined: September 08, 2020 Posts: 649 Location: Truckee
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Posted: Wed May 05, 2021 10:32 am Post subject: Re: 1993 Eurovan - Hesitates, sputters, stalls while cruising |
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It sounds like a mass air flow sensor (or what ever it is called) to me.
Make sure the sensor is clean, only clean with that special spray stuff. Is the air filter wet/damp? _________________ 2002 EVC |
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smores Samba Member
Joined: September 14, 2020 Posts: 91 Location: RNO
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Posted: Wed May 05, 2021 8:35 pm Post subject: Re: 1993 Eurovan - Hesitates, sputters, stalls while cruising |
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93 doesn't have MAF. It's a MAP system which uses a intake temp and air pressure.
There is a throttle position sensor, but it's crude and only does idle and full throttle enrichment.
Check the vacuum line going to your Engine Control Module. it's over on the driver side by the battery. There's a vac hose coming out of it to the intake manifold. Make sure it's in good shape. Replace it if you have doubts. It's cheap.
Maybe the air pressure sensor going bad, and fiddling with the throttle changed it up a bit. But this is a much lower possibility. |
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Abscate Samba Member
Joined: October 05, 2014 Posts: 22573 Location: NYC/Upstate/ROW
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Posted: Thu May 06, 2021 1:53 am Post subject: Re: 1993 Eurovan - Hesitates, sputters, stalls while cruising |
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What’s status on plugs, wires, and coil pack? _________________ .ssS! |
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BatesEV Samba Member
Joined: October 01, 2019 Posts: 182 Location: Los Angeles
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Posted: Thu May 06, 2021 4:05 am Post subject: Re: 1993 Eurovan - Hesitates, sputters, stalls while cruising |
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To me it sounds electrical. The ECM likes constant voltage and if the alternator or ECM relay can’t maintain that then a lot of things go wrong. With the rain part it also makes me think about a crack in the distributor cap. Is it new? Do you have the belly pan on? Common things to just change is ignition switch, ecm relay and fuel pump relay, and vacuum lines |
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daveelser Samba Member
Joined: December 29, 2004 Posts: 9 Location: philly, pa
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Posted: Thu May 06, 2021 11:07 am Post subject: Re: 1993 Eurovan - Hesitates, sputters, stalls while cruising |
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What is the age of your fuel pump?
did you do a diagnostic using a VAG?
If you take a look at your spark plug wires at night you may see arcing...and if not...Spritzing them with a little water...a fine wide spray bottle, while idling...will show you blue arcing from your wires. An easy quick test to check off wires. Don't get zapped. _________________ Dave
'72 Super Beetle
'83 Scirroco
'91+ '93 Jetta
'78 Westy Riviera and '79 Westy Champagne
'90 + '91 Westy
93 Eurovan Weekender
93 Weekender ...currently. help! |
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Lou Jersey Samba Member
Joined: June 10, 2013 Posts: 2 Location: NJ
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Posted: Mon May 10, 2021 12:06 pm Post subject: Re: 1993 Eurovan - Hesitates, sputters, stalls while cruising |
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Thank you all - going to get to some troubleshooting today - will get back to you. |
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daveelser Samba Member
Joined: December 29, 2004 Posts: 9 Location: philly, pa
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Posted: Mon Jun 07, 2021 9:14 am Post subject: Re: 1993 Eurovan - Hesitates, sputters, stalls while cruising |
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Any updates? _________________ Dave
'72 Super Beetle
'83 Scirroco
'91+ '93 Jetta
'78 Westy Riviera and '79 Westy Champagne
'90 + '91 Westy
93 Eurovan Weekender
93 Weekender ...currently. help! |
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cocoablini Samba Member
Joined: September 21, 2020 Posts: 13 Location: CA
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Posted: Fri Jun 11, 2021 1:12 pm Post subject: Re: 1993 Eurovan - Hesitates, sputters, stalls while cruising |
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Something similar happened to my truck. The driveshaft teeth were fragged and missing under acceleration or load and bucked |
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