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Author
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Topic: Surge in 90 full size van?
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Hell_Fish
Gearhead Posts: 685
From: Austin, TX.
Registered: May 2002
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posted 12-28-2002 10:55 PM
   
I drove around my in-laws 90 van this week while they were it town and man is it sad shape. I wanted to know what you guys could suggest to look at or fix.The van surges if going under 55 mph and seems to have a high idle. I think the idle is high to keep it running. I thought the carb may need adjusting at first, but when I drove it at night I noticed the gauge lights dim when I surged. The surges are strong too. If you don't have to brake all the way down it will hop. The engine is a V8. I'm guessing a 302, but didn't get to chance to look. It's a automatic BTW. Any ideas?
Dustin C [This message has been edited by Hell_Fish (edited 05-19-2003).]
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SteveLaRiviere
Administrator Posts: 36138
From: Saco, Maine
Registered: May 99
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posted 12-29-2002 07:29 PM
It's fuel injected. I'd bet the Idle Air Controller is gummed up and in need of cleaning.------------------
'70 Mustang Mach 1 - '72 Mustang Sprint - '94 F-150 Be sure to remember our sponsors, Mustangs Plus, NPD, and Osborn Reproductions.
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Hell_Fish
Gearhead Posts: 685
From: Austin, TX.
Registered: May 2002
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posted 12-29-2002 11:23 PM
I will have to check, but my brother-in-law swears it's carburated. I did think that sounded odd since my 89 BII is fuel injected.I will have them check the Idle Air Controller. Thanks.
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SteveLaRiviere
Administrator Posts: 36138
From: Saco, Maine
Registered: May 99
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posted 12-30-2002 08:21 AM
Unless the vans are real different, I think the last carb on a 302 was in '84.------------------
'70 Mustang Mach 1 - '72 Mustang Sprint - '94 F-150 Be sure to remember our sponsors, Mustangs Plus, NPD, and Osborn Reproductions.
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mtucker
Journeyman Posts: 93
From: Wichita, KS
Registered: Oct 2002
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posted 01-26-2003 02:04 PM
sounds more like an EGR Position Sensor. Other things to consider: Throttle Position Sensor, O2 Sensors, Engine Coolant Tempurature Sensor. Just my $0.02.
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Hell_Fish
Gearhead Posts: 685
From: Austin, TX.
Registered: May 2002
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posted 05-19-2003 04:55 PM
Im bumping this up again. The van is a 91. Would bad injectors make it idle surge up?
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Dustin C
"The Mopar Guy!"
56 F-100
Mech. for wifes 69 Mustang coupe
65 Plymouth Barracuda
70 Dodge Swinger
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MLariviere
Moderator Posts: 3578
From: Biddeford,Me.USA
Registered: May 99
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posted 05-20-2003 10:06 PM
It could be possible. maybe they just need to be cleaned.
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N266fords
Gearhead Posts: 946
From: Spokane ,WA USA
Registered: Apr 2003
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posted 05-25-2003 01:26 PM
Maybe if the lights are dimming at the same time your fuel pump might not be getting enough juice to bring the pressure up i would have a load test done on the charging system then go from there..You siad it does it under 55 how about a cloged fuel filter or air filter,or a bad egr valve..Bruce
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