Question about 1985 Ford F 250

1 Answer

I,have a 85 f250 7.5l. Put a edelbrock carb on it. I can get it to start and idle but when I give it gas it dies. What can I do to make it drivable again?

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Ford Master
  • 2,760 Answers

1st thing to check is the fuel pressure , most carbs have to have a constant 12 psi supply in order to work , they'll idle on lower but will starve out when more throttle is added (pumps and filters)

second thing what model carb did u use ? reason I ask is some models require two fuel inlet connections , the former carb might have only had one that would lead u to believe new one only needs one as well , this may not be true

last but not least : out of the box carbs are set to basic settings as far as jetting goes , some fine tuning is expected to do by installer for perfect calibration of A/F ratio in all throttle settings

Posted on May 20, 2015

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

  • 18 Answers

SOURCE: engine starts but will not idle, i give it gas but will not sustain in running afyer 2 seconds engine dies

check all spark plugs and wires also check mass air flow senser located on intake tube if all is still in good working condition check the throttle position sensor if that is good then it may be your fuel pump please update when possable.

Posted on Aug 07, 2009

  • 86 Answers

SOURCE: Replaced tps, idles fine but dies after i give it gas and let off

take it to auto zone have them run there free test and see what is going on.

Posted on Aug 26, 2009

SQUIRESXX
  • 486 Answers

SOURCE: my 1980 toyota p/u starts idles but on the freeway

i guess it has carbs on that year, which means
1.your main jet is blocked or
2. fuel filter is clogged,
3. fuel pump worn out
4.blocked fuel line
you simply have just enough gas to idle but when you demand more there just is not enough,

Posted on Dec 05, 2009

  • 834 Answers

SOURCE: 1984 F150 won't idle

It sounds to me like there is still a pretty good vacuum leak somewhere, and you should also check for any dis-connected or missing vacuum lines on the intake manifold, at the carburetor, and the large vacuum hose to the brake booster unit and the vacuum valve at the brake booster unit for any vacuum leaks or broken vacuum lines/hoses, and they can be hard to find because cracks in the vacuum hoses like to hide on the under-side of the vacuum lines/hoses especially the hard plastic ones. Also the carburetor could be loose or the carburetor base gasket could be damaged, the EGR valve gasket could be damaged, or the intake manifold gasket could be damaged, and these are all the most likely places to suspect a major vacuum leak.

Posted on Jun 02, 2010

  • 132 Answers

SOURCE: my 85 chevy truck idles real high when you first

thats the electric choke. It warms up the engine so that it will idle properly. It may be sticking. Personally i hate the things and just remove and just hold my foot on the gas a bit when cold starting.

But check and see that the solenoid is not sticking and that the other valves on the carb are not sticking some wd-40 should help.

Posted on Nov 07, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Van Idle


If it is a carb engine check the carb setup, check if the carb is clean.

Oct 25, 2008 | 1996 Ford Aerostar Extended

2 Answers

I have a 74 gmc pu with an 87 350 motor that i put in. I put new edelbrock itake, carb, headers ,new pipe and mufflers, wires ,plugs .It starts, idles, and drives good even at normal or cold operating...


The fuel mixture is wrong because either the carb is badly adjusted or the choke doesn't open fully when the engine is hot.
Take the carb apart and check every single component, starting with the choke plates and the level in the bowls.

Jul 30, 2011 | Chevrolet C2500 Cars & Trucks

1 Answer

My 85 chevy truck idles real high when you first start it and after 3 minutes you hit the gas and it will idle down to normal could it be out of timing or is there a fast idle screw. tried nothing yet 1985...


thats the electric choke. It warms up the engine so that it will idle properly. It may be sticking. Personally i hate the things and just remove and just hold my foot on the gas a bit when cold starting.

But check and see that the solenoid is not sticking and that the other valves on the carb are not sticking some wd-40 should help.

Nov 07, 2010 | 1985 Chevrolet K2500

1 Answer

Tring to determine the best recommended carb for my 85 chevy silverado as in gas milage and power


my suggestion would be a 600 cfm edelbrock these are low maintence good driveability carburetors and good price on them. I assume you are running a 350 v8?

Feb 11, 2010 | 1985 Chevrolet K1500

1 Answer

My 1980 toyota p/u starts idles but on the freeway it starts to die if you give it more gas it sounds like not enough fuel is getting to the carb when i let of the gas it seems ok until you start ta go...


i guess it has carbs on that year, which means
1.your main jet is blocked or
2. fuel filter is clogged,
3. fuel pump worn out
4.blocked fuel line
you simply have just enough gas to idle but when you demand more there just is not enough,

Dec 05, 2009 | Toyota Pickup Cars & Trucks

1 Answer

I have a 85 blazer with a 350 it has a edelbrock performer carb .it starts up just fine and idles fine but when i give it throttle it starts to missor it feels like its choking out


Have you checked the timing? and is it over jetted you may need to reduce the size of the main jets it can be flooding out, you have to make sure the secondary ignition system (plugs wires cap and rotor ) and all good I always recomment Factory AC Delco stuff they have Igh Performance Stuff Too.
if you find this information helpful please give me a good rating and please contact me if you need further help
www.aceautomotive1.com

Aug 10, 2008 | Chevrolet Blazer Cars & Trucks

Not finding what you are looking for?
Cars & Trucks Logo

83 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts

yadayada
yadayada

Level 3 Expert

74945 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

fordexpert

Level 3 Expert

5467 Answers

Are you a Ford Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...