Question about 1966 Ford Mustang

1 Answer

1967 Ford Mustang-- idle problem

I have a 1967 mustang with an in-line 200ci. 6 cylinder engine. The engine starts right up at high idle. Once the engine is at operating temperature, it starts to shake and eventually shuts down. I have to constantly keep my foot on the gas pedal to keep the engine from shutting down. I'd take it for a short drive around the block and then park the car. The idle is quite high at about 1100 rpm and stays that way. Could it be vacuum problem?

Posted by on

  • Anonymous Mar 16, 2014

    the car will run fine for a day or so but after sitting overnight the problem continues

  • Anonymous Mar 30, 2014

    I cut off the engine and try again and it runs right



1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 2 Answers

If I had to fix this, I would use a tiered approach. You have several issues to deal with. 1st- is the engine timing correct (lets assume it is), try adjusting the choke (blackdial on the ffront of a single barrel, turn towards lean) this should bring down the idle. Turn it till it almost dies then turn in the opposite dirrection SLIGHTLY until it steadies out. The engine might shake more now (it did w/mine) so now you losen the 1/2 bolt that is behind the distribibutor. Now that the dis. is lose turn the whole diss. assembily slightly in either direction. One way will steady out the engine, this is adjusting the ignition timmiing. If all that works out you should be golden. Of course there is a lot of possible causes connecting rod length between the gas pedal & carb, vac. leak(through a vac. gauge on it, that will help finding wether or not there is a leak). if this doesnt work repost with results and a vacum reading. I'll check back

Posted on Nov 23, 2008


1 Suggested Answer

  • 2 Answers

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

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.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

4.6 Engine valve train in 2008 Ford Mustang Gt

    mages for 4.6 Engine valve train in 2008 Ford Mustang Gt

    More images for 4.6 Engine valve train in 2008 Ford Mustang Gt

    2005-2009 Mustang Cylinder Heads & Valvetrain ...
    They help your motor breathe better and also make sure your Mustang gives top-notch throttle response. ... 2005, 2006, 2007, 2008, 2009 Mustangs; V6, GT, Bullitt, Shelby GT500, ... 2005-2009 Mustang GT Cylinder Heads & Valvetrain Components ... (6).Ford Racing SOHC 3V 4.6L Head Changing Kit (05-10 GT) $76.00.

    Mustang Camshaft Facts & Technical Information ...

Feb 08, 2016 | Ford Cars & Trucks

1 Answer

Book labor time for auto repairs on a 1967 mustang

This is not a complete job. You must also replace all rubber brake hoses and all metal lines on a car so old. This is major work if done properly. You can order stainless steel lines already bent and correct length, or you can make your own by cutting and flaring parts store lines to fit. I would charge at least as much as retail cost of parts for labor--perhaps more. Job could take several days.

May 29, 2015 | Ford Mustang Cars & Trucks

2 Answers

I have a 67 mustang w/8 cyl, 289, I need firing order diagram?


1967 Ford Mustang 4.7L 2BL OHV 8cyl

The Firing Order

Select the part number to view the diagram.Firing order 1-5-4-2-6-3-7-8 ----------front ' 1 2 3 4 ' of ' ' distributorrotates counter vehicle ' 5 6 7 8 ' clockwise---------

Sep 08, 2014 | Ford Mustang Cars & Trucks

1 Answer

1960 mercuey comet trans not shiftting after engine swap my 6clinder

Did you hook up the vacuum modulator on the transmission to the correct vacuum port on that Mustang engine?

Mar 27, 2014 | 1966 Ford Mustang

1 Answer


it is in the front of one of the heads or on the block i think it is the left side just above the oil pan or it is on the back of the heads

Jul 04, 2013 | 1998 Ford Mustang

1 Answer

1967 ford mustang coil is getting so hot it turns of could this be from my points not gauged right? Plus at idle it sounds rough where do I start?? Help please

I would check voltage to the coil

It should be less than 12 volts

Iam a 1960's guy, but don't remember the exact voltage
There should be a resistor before the coil

Points are set to a specific gap or you use a dwell meter,
at least back in the day

The distributor needs to be on a clean surface ,so the points
& coil can ground out properly.

The idle could be valves,vacuum leaks,carb,any number of things

You may want a grounding strap from engine to body & sub frame

Check the alternator for AC Leakage (current ripple)

Aug 06, 2011 | 1966 Ford Mustang

1 Answer

1986 ford Mustang 5.0 engine is idling to high. How do I turn it down a bit?

its likely you have a vacuumk line cracked or broken , search under the hood , you mat have an idle set screw at the throttle
butterfly assembly , if your lucky.

Aug 27, 2010 | 1986 Ford Mustang

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

449 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts


Level 3 Expert

76846 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers


Level 3 Expert

5546 Answers

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

Answer questions

Manuals & User Guides