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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

1994 FLareside problems

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Old Feb 21, 2024 | 01:27 PM
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1994 FLareside problems

i've got a 1994 flareside with the 5.0 and 4x4 e40d transmission and I've got a few problems. the transmission problem happend way before the engine problem

number 1, random hard shifting, ill be driving for 10-20 mins and then suddenly it'll hard shift, it shifts hard in every gear, pulling over and turning the truck off and on and it'll stop doing it for awhile and it may or may not do it again before the hard shift ill shift to 2nd around 20 mph when it hard shifts i shift to second in 10 mph or lower. no LED's anywhere on the truck and 3rd brake light works. no check engine light

number 2 engine surge. it surges on idle while driving normally and even worse uphill it feels like I've got a lose of power to i have to floor it to just get up a hill. starts up with no issues. also doesn't throw codes or check engine light
 
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Old Feb 21, 2024 | 01:47 PM
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Check for codes.
check your tps sensor for open spots in the travel. It should have a nice smooth sweep like this.

 
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Old Feb 21, 2024 | 01:54 PM
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what is that, that your using to check the tps
 
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Old Feb 21, 2024 | 03:02 PM
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Originally Posted by POSflareside
what is that, that your using to check the tps
That's an oscilloscope. You can buy a cheep one off eBay for $40. You can also use a multimeter to watch the value increase smoothly.
 
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Old Feb 21, 2024 | 03:12 PM
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Originally Posted by POSflareside
what is that, that your using to check the tps
That's an oscilloscope. You can buy a cheep one off eBay for $40. You can also use a multimeter to watch the value increase smoothly.
 
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