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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

Just Getting Started On this issue

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Old Jan 21, 2008 | 02:38 PM
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Talking Just Getting Started On this issue

Hello Everybody!
I have a1986 ford f-150 302v8. While driving home from work on the freeway I noticed it was not accelerating like it use to0. This morning i got up to go to work and it had no power and almost left me stranded it only goes about 5 miles an hour and wants to die and hardly starts. The rpm gauge does not raise like its a tranny issue. I have not even cracked the hood yet Where would be a good place to start?

Thanks
Mg Oh by the way its the EFI
 

Last edited by wilsonriverfisher; Jan 21, 2008 at 02:40 PM.
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Old Jan 21, 2008 | 05:44 PM
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I first would suspect the fuel filter. Also, you may have water in the fuel, and if it's been really cold where you live, it may be freezing and restricting the fuel system. If it runs better after the weather warms up, go buy a alcohol based fuel system treatment. It will pick up the water and send it through to the engine. Otherwise it just sits in the bottom of the tank and causes problems.
 
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Old Jan 21, 2008 | 05:48 PM
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I am in porltand its cold We are in a cold snap! It seems to get worse as it heats up! At first start it is ok then when it gets warm it bogs down bad. Ill check what you suggested
 
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Old Jan 21, 2008 | 06:08 PM
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I don't know if you have access to a heated area you could pull the truck into, but that would let it thaw if that's the problem.
 
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Old Jan 21, 2008 | 06:14 PM
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I wish I did But my big boat is in the garage.
 
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Old Jan 21, 2008 | 08:43 PM
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Either the fuel as noted above or one or both of the Cats has let go. Also on the filter, if you have dual tanks there are two filters on that truck, one on the rail at the boost pump and one inside the switchover valve.
 
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Old Jan 22, 2008 | 05:21 PM
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changed both fuel filters today nothing... IS there a way to test the cats?
 
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Old Jan 22, 2008 | 05:28 PM
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A clogged catalytic convertor usually does not cause hard starting. The next thing to do is pull the codes and see if you have any. Here's a site that tells you how to do it with a testlight or voltmeter.
www.fordfuelinjection.com
 
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Old Jan 22, 2008 | 05:35 PM
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Is your truck Fuel Injected or carburetor? If it's Fuel Injection I would Check the IAC. The Parts store will sell you a new one but if it's not too bad you can clean it with Throttlebody cleaner and a new gasket.
 
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Old Jan 22, 2008 | 06:28 PM
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its going to the shop getting towed there now 46.00 bucks for a diagnostic lets see whats the damn issue Ill update Asap
 
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Old Jan 23, 2008 | 07:22 PM
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Originally Posted by wilsonriverfisher
its going to the shop getting towed there now 46.00 bucks for a diagnostic lets see whats the damn issue Ill update Asap
I've been following this thread 'cause my truck is displaying the same symptons.

Feels like a fuel problem but my gut is telling me otherwise.
 
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Old Jan 23, 2008 | 07:38 PM
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Sounds like bad spark. Possibly a bad coil.
 
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Old Jan 23, 2008 | 07:49 PM
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TADAaa


THE PROBLEM WAS 2 PLUGGED CATALYTIC CONVERTORS
45.00 dollars diagnosis
400. parts and labor or should i do it myself???
Is it doable
 
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Old Jan 23, 2008 | 07:53 PM
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I'm glad mine came without them pesky things!
 
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Old Jan 23, 2008 | 10:21 PM
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Originally Posted by wilsonriverfisher
TADAaa


THE PROBLEM WAS 2 PLUGGED CATALYTIC CONVERTORS
45.00 dollars diagnosis
400. parts and labor or should i do it myself???
Is it doable
Before I bought new ones, I think I would take them off and chunk them out to see if it made any difference.
 
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