1997 Ford E-Series Van engine problem

1997 FORD E-SERIES VAN
273,555 MILES • 6.8L • V10 • RWD • AUTOMATIC
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MRBELIZETOURS
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  • 1 POST
my van stagger and vibrate a lot between 35 45 mph it goes pass 45 mph it runs much better until it drops
down to between 35 and 45 mph again
Sep 4, 2015 at 9:24 PM
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HMAC300
  • ✓ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
scan for codes and check fuel pressure with a gauge auto parts rent it check for a vacuum leak
Sep 4, 2015 at 11:03 PM
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THIS IS MIKE
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Mrbelizetours
September 6, 2015.

ok guys thanks i will do that and see what happens
Sep 8, 2015 at 3:47 AM
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MIKE H R
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  • 3,094 POSTS
If you are talking about a vibration and shimming then I am wondering if it's the engine or tires. Most out of balance will shimmy at lower speeds and stop when one hits about 50 unless they are that bad. If it is the performance and the truck runs all right until you get started I would check the fuel filter and it being a 97 would not hurt by using some sea-foam. It cleans out the junk from the ethanol that they put in the gas nowadays. It helps cleans out the system. Had a 94 Firebird and did the same thing. Found that the pickup screen in the fuel tank was just about clogged .
Sep 8, 2015 at 11:17 PM
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