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Ideal speed on 92 ford f150 5.8 fuel inject - Ford Cars & Trucks

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What is the idle speed, currently? My tune-up specs don't have idle speed specs because it is computer controlled. You can check and clean the idle air control system. Any applicable trouble codes?
If you think it idling too high, you can block off mouth of throttle body, it should kill the engine. If that has no effect on idle, your getting false air in there from somewhere. Just my opinion.

Posted on May 08, 2017

Testimonial: "I do not have a tach but it is idleing at the speed like going down hwy at 70 mph. it has run normal for awhile then it will slip into high speed idle ,but I feel like it might be that computer"

  • jack layton
    jack layton May 08, 2017

    When the problem is ongoing, block off mouth of throttle body, see if any effect? Hopefully you can get it to act up in the drive-way. Intermittent issues can be a pain to track.



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What should be fuel pressure be at 3500rpm truck ideals find until you drive it as soon as you give it gas spider backfires let off and it find change fuel filler ??

The fuel pressure is constant eighter at idle or highway speeds .
Fuel injection systems have a return line to the tank..
The problem could be the fuel filter the pressure should be around 60 PSI but this is on the supply side comeing from the pump to the to the engine or injection system.
However the problem could also be a clogged catalistic convetor.If the exhaust can't get out the engine will not run so good. Look at the thing and think about then do something.
Good luck

Mar 10, 2015 | Cars & Trucks

1 Answer

I have a 1993 Chevy 6c s10 is very high high ideal and won't go down stay high

High idle speed on a vehicle with fuel injection is usually caused by a faulty idle air control valve or a vac leak.

Jan 23, 2013 | Cars & Trucks

1 Answer

Dies at stop sign won't idle at times rpm is around 600 when it will idle

600rpm is a little low, check the fuel filter, if the auto is not fuel injected a slight adjustment at the carb is possible. There are so many things involved with ideal speed, you might need to take it to a mechanic.

Dec 25, 2012 | Ford E-350 Cars & Trucks

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Car chokes and sputters until up to speed. Replaced fuel filter a year ago?

if your car is still using a carburetor, clean the carburetor first. If it is already Fuel injected, clean your MAF sensor.

also, it is ideal to replace your fuel filter everytime you do a change oil (normally this is done every 6 months)

May 17, 2012 | 1991 Honda Civic

1 Answer

What makes a taurus se engine shake at ideal but when speed up smoods out

Generally, this is caused by either a vacuum leak somewhere on the top of the engine or dirty fuel injectors. Listen carefully for a vacuum leak [sucking air sound] at or near the top of the engine. Another way to locate a vacuum leak is to spray carburetor cleaner [aerosol can] at small areas, where there are vacuum hoses or intake gaskets. When you find the area of the leak, the carb cleaner will get sucked into the leak. This will generally cause the engine to run better.
Try adding fuel injection cleaner to the gasoline tank. I recommend the Chevron Techron brand of fuel injection cleaner. Advance Auto and Costco carry this brand.

Dec 11, 2011 | 2003 Ford Taurus

1 Answer

Failed OBDII Diagnstic trouble codes P0761 and O1744 What does this mean?

code P0761-
Possible causes - Low transmission fluid level
- Dirty transmission fluid
- Faulty shift solenoid 3 valve
- Shift solenoid 3 valve harness or connectors
- Shift solenoid 3 valve circuit is open or shorted
P0761 FORD Description Shift solenoid valve 3 is turned ON or OFF by the Transmission Control Module (TCM) in response to signals sent from the park/neutral position (PNP) switch, vehicle speed and Engine Control Module (ECM) (throttle opening). Gears will then be shifted to the optimum position. When is the code detected? The P0761 code is detected when the ECM has detected a mechanical fault with the solenoid energized, valve stuck off code O1744- is not a code these are the ones I have found that come close
P0174 1999 FORD WINDSTAR Fuel Injection System Too Lean Bank 2 P0174 2000 FORD WINDSTAR Fuel Injection System Too Lean Bank 2 P0174 2001 FORD WINDSTAR Fuel Injection System Too Lean Bank 2 P0174 2002 FORD WINDSTAR Fuel Injection System Too Lean Bank 2 P0174 2003 FORD WINDSTAR Fuel Injection System Too Lean Bank 2 P0174 FORD Fuel Injection System Too Lean Bank 2

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I have a 92 F150 supercab and it wont start...I had someone jump

I would check for spark at the plug wires, and check for fuel, there should be a pressure test port on the fuel injection rail to connect a fuel pressure gauge.

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3 Answers

My '92 F250 wtih 7.3L diesel starts then shuts down immediately. It takes about 3 cranks to get it to run, then it is fine to drive. I replaced the fuel lines (plastic) as the old ones were leaking, and...

i have that same issue and mine is a 97. I think its either injection related or the high pressure oil pump my buddy's just went out and its doing the same thing our trucks are doing. the best bet is to get rid of your truck or pay 2600 bucks unless your a skilled mechanic or know someone who can do it for cheap because the parts only like 20- 100 bucks

Dec 30, 2009 | 1992 Ford F250

1 Answer

92 colt 100 hesitates at low speed but runs fine after it speeds up.

maybe clean the fuel system, like the injectors and stuff, or maybe it needs a new air filter. I am assuming it is fuel injected, since it is a 92. or, maybe it needs something in the ignition system.

Sep 30, 2008 | Mitsubishi Colt Cars & Trucks

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