Question about 2000 Jaguar S-Type

1 Answer

Rough Idle Okay After replacing the coils and plugs, I have developed a mysterious rough idle. comes and goes, shuts the car off with out warning like switching the key. No apparent vacuum leaks, otherwise runs like a new car. Any help???

Posted by on

  • Todd Weaver Feb 06, 2009

    Okay I have fixed the bugger, there was a vacuum leak on the back of the engine. There is an elbow behind the intake manifold , not that but what ever the elbow connects to I assume it goes into the engine crankcase? It does not seem to effect the preformance at all. Is there any long term effects this may cause? Apparently who ever owned the car before me had eliminated the EGR system, there is no valve, controller or anything.

×

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.

  • Jaguar Master
  • 22,041 Answers

Try cleaninhg the contact block on the coils as this is the only thing that you have touched ,put a bit of coppergrease on the pins to help the connections and try that,before you take it to dealers

Posted on Feb 05, 2009

  • Colin Stickland
    Colin Stickland Feb 07, 2009

    iam always telling people to check these vacumn pipes,but in your case it threw me when you said it was working beforehand,plus after a days work i get tired ,well thats my excuse and iam sticking to it.As for the ecg valve ??another thing i tell people to disconnect as they cause excessive smoking and rough running when they pack up ,and the way i see it is that older engines never had this fitted ?? er indoors car has been disconnected for 2 yrs now and it passes the annual inspection with no problems (rover 200 diesel turbo) So while it runs ok leave well alone is my best advice.Right have to clear inbox then i have to get another car back up the inspection depot as it failed on the brakes.I took the job over from another so called mechanic so fitted new exhaust and just took it without checking it myself .handbrake low on one side so its down to checking the auto adjusters as no doubt he adjusted cable and didnt remove the drums.anyway best of british

×

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

99 Mazda Premacy automatic difficult to start and idles very rough (max 500/600rpm). Also brake pedal goes "hard" when at low revs (like braking unboosted) but returns to normal whilst driving or under...


industry standards for compression is no more than 10% between cylinders which makes the 90 lb/sq" should be 117 at worst.. If the head job was done properly then a replacement engine is indicated as there is a ring problem in the low cylinder. Rough idle is an indication of a vacuum leak and if the brake booster is not assisting I would be looking at a leaking hose connection between the manifold and the booster Idle rpm is around 900 for a mazda. Check for faulty pc valve allowing excessive air from the sump and not shutting off correctly.

Sep 07, 2013 | Cars & Trucks

1 Answer

Hi, Ian H/D from Tamarac Florida with my 1997 740i it has a rough idle sometimes with misfire codes coming up all the time and p 111 codes i changed all the coils put new ones and replaced the idles v


There is a known issue with the Idle Air Control Valve (IAC), if you put a scanner on the vehicle that has the capability of reading Numbers... Look at the IAC and it should be around 20, if it is around 100, you IAC is not working properly.

Apr 08, 2013 | 1997 BMW 7 Series

1 Answer

94 honda accord vtec Car started to have a rough idle and a **** like feel when it only comes to a stop as in a stopsign or stoplight. When I accelerate pass 10mph the rough idle and jerks goes away....


I don't think it's a fuel problem. Sounds more like spark. Change plugs and wires, and possibly the coil pack. Also could be idle control sensor.

Mar 30, 2013 | Cars & Trucks

1 Answer

My 02 galant runs rough when put in gear but in idle runs okay it also surges up and down replaced the plug wires


Okay, lets start with the oil you found on spark plugs when you were replacing them. this oil is coming from the valve cover tube hole area, notice the plugs go into the holes in the valve cover, there is a gasket the goes around the top of the tubes and when it leaks it goes into spark plug hole, the valve cover needs replacing .
this will cause rough idle and running problems, after replacing valve cover gasket the holes must be cleaned, using crab cleaner, spray into holes and use air to blow out . this may need to be done a few times to get oil out .
after oil is removed . then remove spark plugs and wipe them clean.
The next step is to find the air (vacuum leak) , you said you hear it around intake tube. check for cracks or broken vacuum line. this leak will cause idle problems and driving problems,

Nov 18, 2012 | Cars & Trucks

2 Answers

Cose p0306


Code p0306 means that cylinder six is misfiring. Take it to a mechanic or try to fix it yourself. Change spark plug, plug wires, solenoid.

Aug 27, 2012 | 2004 Chevrolet TrailBlazer

1 Answer

89 s-10 4.3 MISSFIRING


You don't have a carburator. Remove the intake manifold and replace the fuel pressure regulator spyder assy.

May 20, 2010 | 1988 Chevrolet S-10

3 Answers

2001 v6 escape rough idle when cold


To update my earlier repair on the 2001 6 cyl Escape: When cold, and when the ignition was turned over but no accelerator pressure given, the rough idle finally returned the P0303 code again when the check engine light came on indicating that it wasn't caused by the plugs or the coil. FYI, I had replaced the intake manifold gaskets during the original repair and just prior to that I had replaced the fuel filter which was very dirty (I cut it open to see).

The repair manual referred to fuel injectors as a possible problem. I have run three tanks of fuel using different injector cleaning products and am very pleased with the results. Cold starts are much smoother and I am unable to coax out the P0303 code or any other code.

My opinion, change the fuel filter, use a fuel injector cleaner for a couple of tanks, change the plugs if the problem still exists. The coils were not the problem on my vehicle.

Jan 17, 2009 | 2001 Ford Escape

1 Answer

Missfire


You may need a new wiring harness. They have to be ordered from Germany. This is my guess. (I am having a similar issue with my '94; rough idle, #4 cylinder not firing intermittantly, replaced plugs and 8 ignition coils; new harness is my mechanics guess)


cheers and buena suerte

Dec 30, 2008 | 2003 Porsche Cayenne

Not finding what you are looking for?
2000 Jaguar S-Type Logo

Related Topics:

250 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jaguar Experts

Colin Stickland
Colin Stickland

Level 3 Expert

22041 Answers

yadayada
yadayada

Level 3 Expert

70365 Answers

SPEEDY CAR WORK SHOP...

Level 2 Expert

447 Answers

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

Answer questions

Manuals & User Guides

Loading...