Question about 1984 Ford F 150

1 Answer

1984 F150 won't idle. As soon as I start it, it chugs like it wants to die. After I give it gas for a while, or drive it for a while, it will idle, but idles rough like it could die at any minute. I replaced all the vacuum lines but can still here a leak somewhere. When I spray carb cleaner around the carb it revs up. Even does it when I spray on all of the new lines.

Posted by on

  • mdbaysinger Jun 04, 2010

    After re-checking and replacing each individual vacuum line, it appears the leak is probably one of the gaskets. I replaced the carb to spacer gasket, but could not figure out where to put the spacer to manifold gasket. The only gasket I found after removing the carburetor was the carb to spacer one.

×

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

  • Contributor
  • 40 Answers

Make sure when your spraying that you have a spray tube on it for pinpoint testing. Then disconnect one line at a time and plug both ends until you find the one that changes idle. Spraying without a tube will allow vapors to be picked up by the intake and give you a false reading. Also spray a short burst at each intake to head runner, could be an intake gasket.

Posted on Jun 03, 2010

Testimonial: "Very helpful as far as how to pinpoint the vacuum leak."

1 Suggested Answer

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

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Please Help!!! Replaced ECM and truck immediately dies


Have checked the idle air control valve. If stuck closed it will not allow air to bypass the throttle therefore it will start and stall.

Jun 08, 2013 | 1990 Chevrolet C1500

1 Answer

Engine stutters and chugs


check spark plugs and wires.

Mar 14, 2012 | Cars & Trucks

1 Answer

I have a Ford F150 V-6 5.4 liter engine and it is giving off the code P0102 mafvaf 1 of 1 what can I do because it is chugging along and sometimes dies on its while driving. Afraid I'm going to get...


SOUNDS LIKE THE MASS AIR FLOW SENSOR IS BAD! YOU CAN USUALLY PURCHASE ONE AT AUTOZONE! AND THEY MAY BE ABLE TO SHOW YOU EXACTLY WHERE IT IS LOCATED!

Mar 05, 2011 | Ford F-150 Cars & Trucks

1 Answer

My van ran out of gas! I got it started and made it to a gas station I put $5 in the tank enough to get us home! The next morning it would not start! so my neighbor went and got $10 of gas for me but it...


It would be good to know the make, year and model of the van to do a diagnosis. I'll take a stab in the dark, High reving could be caused by a faulty idle air control motor, common on a Ford. Is the Service Engine Soon light on? A malfuntioning Throttle position sensor will cause a high idle. I wish I had more info so I could be of help, Good luck, Gary

Jul 25, 2010 | Cars & Trucks

1 Answer

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.

Jun 02, 2010 | 1984 Ford F 150

1 Answer

1984 ford f150 wont start


Dry out or replace the distributor cap and rotor should fix it

Feb 06, 2009 | 1984 Ford F 150

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

Related Topics:

296 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts

yadayada
yadayada

Level 3 Expert

75051 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

fordexpert

Level 3 Expert

5470 Answers

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

Answer questions

Manuals & User Guides

Loading...