Question about 2002 Jaguar X-Type

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Black smoke from exhaust on acceleration and car holds back as if no fuel is reaching the engine

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Check ur oil maybe a pump oil pump jag 2.5 is noen for it

Posted on Oct 09, 2008

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Why does engine run rich at times under acceleration?


not enough detail
to get an engine to accelerate , the air /fuel mixture is moved to rich in accordance with engine rpms
the more rpms the richer until the peak rpms are reached
( accelerator pump-power valve in carbies and ECM settings according to accelerator position
black exhaust smoke in diesels
so if you press the accelerator slowly then the air/fuel mixture is altered constantly in relation to the pedal setting
If you floor the pedal then it moves to rich and you get black exhaust smoke until the air mixture is again in balance

Oct 21, 2015 | Cars & Trucks

1 Answer

Is there a mechanical problem with my 98 Ford falcon when accelerator pedal is flat to floor and when you release accelerator a puff of black smoke comes from exhaust


Probably not a problem as black smoke is a sign that too much fuel went into the engine. This is especially true when engine is cold and in choke or "cold start sequence".

Jan 26, 2015 | Ford Cars & Trucks

1 Answer

Motor is smoking in my '02 diamante, is it the gasket?


Smoke diagnostic is made by colour.
If u mean pistons head gasket,yes,it can smoke.
White (clear) water vapor.Ceck coolant level.Ceck engine oil colour by dipstick.

Black:runs rech on fuel (fuel filter/fuel lines/fuel mixture...)
Blue (whity):worn pistons rings.

Chears.
Tips:
Whity smoke before warming may be natural on cilli mornings with lot of compressure the engines just blows vapors.
Old oil/fuel residues in the exhaust tubing may blow smoke after heating the engine ,must track problem (...).
Black smoke on hitting the acceleration to the floor may be natural (overcharged) avoid sport driving style.

Sep 29, 2013 | 2002 Mitsubishi Diamante

1 Answer

Constant black smoke whenever accelerator is used?


Too much gas going through the engine-that's why black smoke. That's all your unburned gas going out the exhaust. Have the fuel pressure tested. A failed pressure regulator will pull extra gas into the engine. Pull off the vacuum hose to the regulator. If any evidence of gas in the hose, the regulator's diaphragm has broken and sucking gas through the hose into intake.
If fuel pressure is correct, have a scan done for trouble codes.

May 08, 2013 | 2004 Chrysler Voyager

2 Answers

I have a Hyundai Trajet 2002 Gasoline. I have a problem with keeping the engine alive.


The engine is running very rich that is why the exhaust is emitting black smoke. The engine needs a tune up so the air fuel mixture is correct.

Dec 02, 2012 | Hyundai Cars & Trucks

1 Answer

Black smoke from exhaust but computor saying 44.5 mpg around town. 2.0ltr. mondeo deisel


Your duplicate question did not say it was a diesel.
Usually black smoke on a diesel is dirty injectors or the engine temp not reaching normal range.

Jul 03, 2012 | Ford Mondeo Cars & Trucks

1 Answer

6.5 td fueling up when it reaches 180 deg


You have fuel in you cylinder.....Check your carburetor. It might need adjustments. Also, check for faulty fuel pump, injector, engine electronic. Also, check your fluids...all of them.

Hunnybunny

Mar 15, 2010 | 1996 Chevrolet C1500

1 Answer

Smoke coming from exhaust at higher speeds or when putting foot down, also acceleration jerky like am blipping the accelerator not cruising used to cruise 110 no bother now its taking it to reach 100


If the smoke is blue, it is burning oil. If it is black or dark grey it is running way too rich, like your choke is stuck on. That would also explaing the jerky acceleration and poor response. Your fuel consumption will also skyrocket.

Feb 22, 2010 | 2004 Jaguar X-Type

6 Answers

Jag X TYPE Diesel Black smoke coming from exhaust on acceleration


i had this problem and thought the fuel filter oil filter needed replacing so i have just had a service done but problem is still there but not as bad. been told it could be the AGR valve or a split pipe going to it which recuirculates unused fuel back to burn again. therefore unspent fuel is coming out of the exhaust causing the black smoke. i am still looking for the answer aswell, hope this helps.

Nov 07, 2009 | 2004 Jaguar X-Type

1 Answer

Black smoke when accelerating


Black smoke from exhaust means engine is getting to much fuel

May 23, 2009 | 2002 Kia Sedona

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