Question about 1996 Pontiac Sunfire

1 Answer

Our sunfire still idles rough and blows black smoke , we just had it tuned up at one shop then a secound shop repleced the EGR valve.

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.

    Genius:

    An expert who has answered 1,000 questions.

  • Pontiac Master
  • 1,075 Answers

Take a good look in daylight,and see if its black smoke or is it blue tint and is the engine useing oil?black smoke indicates lack of [air]check air filter.adrian

Posted on Mar 15, 2011

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

While driving my dashboard displayed the warning sign for oil. the oil level was correct, but still it is rough on idle and makes a lot of smoke. how may i diagnose the problem?


Bummer deal! Rough idle and black smoke indicates a possible bad fuel injector leaking gas - or failing spark plugs. Bad or dirty injectors are a cause of sticky valves, and when sticky do cause rough idle and sometimes valve tapping - beside black smoke. Check those items first as they are most common failures. Rarely, a engine head sealing gasket may leak coolant into the motor to cause such problems. That would make a white steamy smoke. In that case it would overheat - did it? In this case, serious engine work, or a new engine is needed. I like the products at this web sites to end those issues. Hope this helps. DIY fuel injector cleaners fast acting Ends several tune up problems

Nov 04, 2014 | Cars & Trucks

2 Answers

Rough idle 95 astro van, I did a full tune up , plugs,wires,cap, rotor,air filter,and fuel filter and cleaned egr vavle.


I actually had to replace my EGR valve and the gasket. I clean the valve well and reused both. I don't think the gasket sealed well enough though. So I went ahead and got a new valve, gasket and changed them. It runs a lot smoother now.

Dec 14, 2012 | 1995 Chevrolet Astro

1 Answer

1988 lincoln mark 7 bill blass running rough. found bad injector on #7 and replaced. checked all plugs and wires, had engine cleaned for carbon. problem not as bad as before, but still a little rough. new...


TPS will make it run bad and worse as time goes by. Fuel regulator will not let it run or it will pour out black smoke on heavy acelleration. I would check all the vacuum lines first, this is the most likely cause of rough idle, besides a tune up. Vacuum leak....

Jun 10, 2011 | Lincoln Mark VII Cars & Trucks

1 Answer

2000 pontiac sunfire starts only when gas pedal is held to floor, idles rough and white smoke comming to exhaust changed IAC valve..no change


If you have excessive white smoke coming from the vehicles exhaust, it sounds like your headgasket is failing. Especially having a rough idle too. Check your coolant level, does your exhaust smoke smell sweet, like Antifreeze? If so, the gasket has blown. Hope this helps...

Mar 12, 2011 | 2000 Pontiac Sunfire

2 Answers

Want to know what a code PO171 means(system too lean bank1).car idles rough and blows black smoke when you rev it up.and is also misfiring.?


If the car is thinking its lean, but its blowing black smoke then it sounds like its confused. Sounds like the o2 sensor is bad. How does it run when its cold?

Feb 12, 2011 | Pontiac Sunfire Cars & Trucks

1 Answer

R WHAT CAUSES ROUGH IDLE AND SHUT DOWN ON 1995


the egr valve on the intake might have a chunk of carbon stuck in it holding it open and that will give you a rough idle and some black smoke out of the tail pipe,its located to the left rear of the air cleaner,u can get a better look at it once you grt the air cleaner off,once u do that start it and try to push up on the diaphram in the egr with 2 fingers and see if that makes a difference,if it doesnt pull the egr off and see if anything is holding it open,hope this helps

Sep 05, 2009 | 1995 Chevrolet Tahoe

1 Answer

2003 DODGE NEON RUNS ROUGH


Try cleaning the EGR valve first



electronic Tempture Control
ECT sensor
symptoms
Potential Symptoms

Symptoms of a P0118 could include:

* Very poor fuel economy
* A no start condition
* Vehicle may start, but run very poorly, blowing black smoke, running very rough and misfiring
* Illumination of MIL
EGR valve

Usually a fault in the control circuit, will leave no noticeable symptoms other than the Malfunction Indicator Lamp (MIL) illumination. However, if the EGR control solenoid
is stuck open due to debris, etc. the code may be accompanied by misfire under acceleration, rough idle, or engine dying altogether.

Dec 22, 2008 | Dodge Neon Cars & Trucks

2 Answers

2008 f250 super duty 6.8 deilsel


sounds like an egr valve problem, pull the egr valve out of the intake (2 8mm bolts and pry out with a "ladyslipper" style pry bar, it it is covered with thick soot then this is probably your problem, this problem will often not trigger a code

Nov 27, 2008 | 2008 Ford F 250 Super Duty 4WD

Not finding what you are looking for?
1996 Pontiac Sunfire Logo

Related Topics:

291 people viewed this question

Ask a Question

Usually answered in minutes!

Top Pontiac Experts

yadayada
yadayada

Level 3 Expert

75817 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8180 Answers

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

Answer questions

Manuals & User Guides

Loading...