Question about 1988 Ford Thunderbird

1 Answer

Have a 93 Thunderbird that idles roughly for about 90 seconds after being restarted at full operating temp.Never exibits problem from cold start.MAF sensor was replaced as possible suspect but did not help.But then new MAF was disconnected and problem stopped.What does this indicate as the problem.Engine is 3.8 with auto trans.Thank you very much for any help.

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Ford Master
  • 2,007 Answers

Probably a head gasket. Water / antifreeze seeping into the cyllinder when it's hot/pressured up, and the plug won't fire until the water is blown out the exhaust, then it runs fine. Next time you hot start it, and it's running poorly, see if there is any white smoke coming out the exhaust.

Posted on Apr 23, 2009

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

F150 stalls


I'm assuming the truck runs ok once it is warmed up. Sounds like you need to make some adjustments. The cold idle speed is set too high, and the choke is opening too fast. The cold idle should be around 1500 rpm and the choke should take at least 90 seconds to open depending on air temp.

Jun 08, 2013 | Cars & Trucks

1 Answer

Rough idle


This could be the O2 sensor or the MAF sensor. Try disconnecting the MAF sensor and if the idling seems normal, the MAF sensor is bad. Yet, it is always better to get the codes read if the CEL in blinking.

May 08, 2013 | Cars & Trucks

1 Answer

I have a 92 yj 2.5l 5 speed. it has only after warming up a misfire/rough idle. its fine when its cold and once it warms up and idle comes down it misfires/idles really rough. may be lacking power also. i...


check that the EGR valve is not sticking or has a vacuum leak. This valve will not operate until the engine is warm.

check also the engine coolant temp sensor (ECT). This sensor tells the engine computer that the engine has warmed up, so if it is faulty, it could be sending wrong information to the computer. If the sensor is disconnected, wires to it broken, or faulty in full cold mode, it will tell the computer that the engine is very cold, like -40F. The computer will schedule fuel for cold conditions. This is usually way too much fuel for a warm engine and it will rich misfire, idle rough, and be difficult to start warm.

The ECT has two wires going to it and is dedicated to sending information to the engine computer. It has nothing to do with your dash gauge that shows coolant temp. That sender has only one wire and is dedicated to the coolant temp gauge.

Feb 21, 2011 | 1993 Jeep Wrangler

2 Answers

Vibration at idle


it may be idle control sensor or a bad mas air flow sensor--maf sensor in otherwords. or could be engine misfire at cold temp. start. only time when cold? or does run better when warm? try warming engine to operating temperature before driving,if problem removes it's self after warm up,up grade gas to 93 octane for 1 tank full. then see if problem goes away. it's cold where you are right? if so the fuel needs to be at least midgrade 89 octane fuel because 87 octane fuel will not start your honda correctly at cold temps. in cold weather 93 or super gas octane will start ,no problem,low octane fuel sometimes gels, or freezes at low temps. if in warm climate, change the fuel filter, add fuel injector cleaner to your fuel tank[preferablly lucas fuel treatment] this will lube your fuel injectors and give better fuel mileage. thank you for choosing fixya.com

Jan 04, 2011 | 2002 Honda Accord

1 Answer

Will not run smoothly when engine warm unless MAF


I would guess you pretty well havew it figured out. Change the MAF sensor.

Dec 24, 2009 | Mitsubishi Montero Sport Cars & Trucks

1 Answer

High rev, rough idle in golf


If your car is fuel injection,try changing the cold start temp sender.

Jul 17, 2009 | 1997 Volkswagen Golf

1 Answer

90 ford bronco is cold blooded


There is a sensor on the manifold called the ACT, air charge temp. if it is malfunctioning it can cause this behavor. Run codes and see what it shows. if you dont want to by a scanner you can find full instructions on how to pull codes manually at fordfuelinjection.com

Jul 03, 2009 | 1990 Ford Bronco

2 Answers

Engine idles rough for 90 seconds after restart when hot


sounds like the mass air flow sensor it is located on the air inlet try unplugging it and see if it runs better when it is running rough

Apr 09, 2009 | 1993 Ford Thunderbird

3 Answers

Engine rough in low idle


I would start by replacing your automatic air intake and throtle body sensor. Check these 2 things out and let me know.

tepfy

Feb 27, 2009 | 1992 Mercedes-Benz Mercedes Benz 300 Class

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

137 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts

yadayada
yadayada

Level 3 Expert

75744 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22114 Answers

fordexpert

Level 3 Expert

5495 Answers

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

Answer questions

Manuals & User Guides

Loading...