Question about 1999 Ford Contour

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1999 Ford Contour vehicle "bucks" a little when accelerating

Intermittent while driving. We had an O2 censor replaced along with the wiring harness. The Ignition Coil was just replaced and the fuel filter was just replaced. Any suggestions? Thanks!!!

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You may try checking your catalytic converter for rust and debris.

Posted on Nov 26, 2008

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I have the same issue. Does it do this while you are starting your acceleration? I have not yet found a cause but momentarily letting up on the accelerator seems to "cure the bucking" at the the time

Posted on Oct 13, 2008

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My Pontiac grand prix se has no power


Where to start,
- Check exhaust
-- Blueish smoke, Could be Fried Cylendar Rings, Verify With Compression test - Also check if the oil level is going down
-- White Smoke, Could be spark plugs, wires, or coil pack
--- Check oil for a white or brownish foam, if so head or intake gasket.

- if 3.4L, intake gaskets are a common issue, sometimes you can hear it sucking if you accelerate from the throttle body. (Be carefull, moving parts!)

- See if vehicle is having a problem with climbing over a certain RPM, If so
-- Plugged Fuel Filter
-- Plug Catalytic Converter
-- Plugged Air Filter

- If automatic
-- See if transmission is kicking down a gear during harder acceleration.

Also note that a bad TPS (Throttle Position Censor) located on the throttle body can cause this as well. Often felt as very poor acceleration or studdering during acceleration.

Failing O2 censor can cause an issue like this as well, unhooking the censor completely will put the car in a failure default setting that will allow it to operate close to normal, but make sure you replace it if it has failed to avoid replacing Catalytic Converter as well.

Start there, but it could be many other things as well. If check engine light is on, get it read. or pick up a code reader and read it yourself.

Good Luck

Oct 12, 2014 | Cars & Trucks

1 Answer

Sudden acceleration on 99 Ford Contour


I had a 99 cougar do the same thing, Come to find out that the rubber hose that ran to the PCV valve had a hole in it. Replace the hose with a after market one ( they quit making them ) It works fine now!

May 16, 2014 | 1999 Ford Contour

1 Answer

1999 ford contour p1381 error code


P1381 Camshaft Position Timing Over Advanced (Bank 1)
Take vehicle back to the garage as it sounds like the sensor is loose or not plugged in.After paying all this money for the work to be done they should have it put right for free straight away and they should give you a cortesia car with a free tank of fuel while they put yours right

May 18, 2013 | 1999 Ford Contour

1 Answer

1999 ford contour hesitates when accelerating?


I would check all of the vacuum lines to check for any damaged or cracked ones. If none, when was the last time you did a full tune up on this car? Plugs, wires, air filter(s), oil change, radiator flush, transmission fluid flush! Without first knowing how many miles are on this car, and the last time any of this was changed, it would be a hard diagnosis.

Oct 18, 2011 | 1999 Ford Contour

3 Answers

I have a 97 Ford Explorer AWD 8 cylinder. Check engine light comes on and I get code p303. Vehicle bucks at times, uses lots of gas. Believe it may be 02 censor, spark plugs and wires tested ok. Any Idea


code says #3 cylinder misfire, check the coil pack for this cylinder to see if its got spark, bad o2 sensor will spit another code, its most likely the coil

Mar 17, 2011 | 1997 Ford Explorer AWD

2 Answers

98 ford contour wiring diagram


When you tell us "wiring diagram", is for one specific circuit or you are refer to the firing order?

Apr 13, 2010 | 1998 Ford Contour

1 Answer

The timing belt on my '99 Contour just broke. I had it replaced along with the tensioner by a Ford dealer....but now the engine falters under moderate to hard acceleration. Prior to the timing belt...


let them re install it ,
I think it is one tooth backwards.
you need to do a timing test with a dynamo dyno lap top computer hooked up to the engine computer. the dealership for ford will do it let them know.
vitally

Sep 10, 2009 | 1999 Ford Contour

2 Answers

When accelerating alternator light comes on.


check the engine ground wire (grounds from the engine to the body.) I had this problem on a ford ranger.

Jan 24, 2009 | 1999 Ford Contour

1 Answer

Eec fuse keeps blowing on mercury mystique


When you go to wide open throttle, the only thing that happens is your a/c cut out is activated by the throttle position sensor. I owuld check there, but it is very rare that the TPS would cause a fuse to blow.
You may have an engine wire harness that has the wiing insulation decomposing causing wires to short against each other. Peel open the plastic convolute and look for cracks in the insulation. Here is info on a Ford program to repair if less than 100,000 miles on your car.

October, 1999
To:
All Ford and Lincoln-Mercury Dealers
Subject:
Owner Notification Program 99M03 - Certain 1995-1997 Contour and Mystique vehicles - Under Hood Wire Harness - Additional Coverage.
PROGRAM TERMS:
This program provides extended coverage on certain under hood wire harnesses through 10 years or 100,000 miles which ever occurs first, from the original warranty start date. AFFECTED VEHICLES
Certain 1995 - 1997 Contour and Mystique vehicles built from Job #1 1995 through Model Year End 1997. REASON FOR RECALL
Under ambient factors of high temperature and high humidity, certain 1995 - 1997 Contour and Mystique vehicles may be susceptible to the wiring insulation becoming brittle and cracking on certain engine compartment wiring harnesses. These harnesses deliver electrical power to the engine and its cooling and control systems, the climate control, and other power distribution systems. If wire harness insulation cracking is found during the additional warranty period, the under hood wire harnesses are to be replaced at no charge to the customer. SERVICE ACTION
Additional Warranty Coverage
Effective immediately, Ford is providing additional coverage for the replacement of the under hood wire harnesses on these vehicles for a period of 10 years or 100,000 miles, which ever occurs first, from the original warranty start date. This coverage exceeds the provisions of the original component warranty coverage on the affected vehicles and is automatically transferred to subsequent owners at no charge. This additional coverage does not include normal service diagnostic or repair charges unrelated to wire harness brittleness and cracking. After this additional coverage has expired, wire harness replacements will be at the expense of the vehicle owner.

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Dec 09, 2008 | 1995 Mercury Mystique

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