Question about 1987 Buick Century

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I have no power during acceleration car has a hard time going just replaced coil packs and did a tune up

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Check that the egr valve is not stuck

Posted on Jul 14, 2009


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My Ford F-350 5.4 loss of power during acceleration hard get up hill new plugs coil packs & also cleaned fuel lines & injectors Engine code reads Eva purge Valve solenoid open

Evaporative purge solenoid wouldn't cause lack of power , You have plugged catalytic converter . Have exhaust system back pressure tested .

Mar 07, 2016 | Ford Cars & Trucks

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Surging douring slow acceleration

stand the air intake on summer can find this on your ,
airfilter is a valve,its possible it stand in the wrong possition,winter or summer

Apr 09, 2013 | Cars & Trucks

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My 2007 Toyota Sienna shakes

ignition fault check replace spark plugs leads test it then coil packs

Feb 11, 2013 | Cars & Trucks

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When i accelerate my engine back fires and wont go. but sometimes if i accelerate hard it will take off and when i ease on gas it start to deccelerate and slow down again

I would start with checking the plugs, wires, coil packs. If you haven't had a tune up in a while it will never hurt to replace these. Also check and clean throttle body. Check all around your intake manifold at each vacuum line for cracks and or leaks. May also be your catalytic converter. Does it run fine in park and neutral but have a loss of power in gear. Hope this helps

Jun 17, 2011 | Dodge Ramcharger Cars & Trucks

1 Answer

Just purchased 2000 Buick LeSabre. 56,000 miles, sporadic trouble starting--sometimes starts first try, other times will crank and won't start and have to slightly depress the accelerator and then will...

If it runs rough all the time, could be a bad coil pack/wires. If just starting and hesitates on acceleration, I would suspect the throttle position sensor.

Jun 10, 2011 | Buick LeSabre Cars & Trucks

1 Answer

Car is sluggish and tends to bog down during hard

Could be several possibilities none of which I may be able to eliminate:
1. Tune-up!  You are not getting enough spark or Fuel!  Plug-wires may be cross-firing or bad ground from body to the engine - run a new ground wire to engine from battery or body-ground.
2. Replace fuel filter or do fuel pressure test to determine if f-pump is weak or lodged with corrosion or dirt particles.
3. replace plugs and wires and clean coil-pack ignition module (where plug wires originate from) use a brake-cleaner or throttle-body cleaner but be sure fumes are evaporated and dry before starting or spark could cause explosion from fumes. Oil on module could cause spark to jump.  Do not run plug wires along each other or will jump spark, wires must be crossed once or twice for prevention of this.\
4. check all vacuum lines around engine - a cracked vacuum line can cause a lot of problems.
5. injectors may be dirty or bad - easier to replace complete intake from scrap-yard then to pay $100.00 for new injectors each!
6. Coil-pack on ignition module could be cracked and may need to be replaced.
These are only possibilities of course with the little info you provided.
Hope this helps.

Jun 08, 2010 | 1999 Chevrolet Malibu

2 Answers

How replace coil packs and spark plugs

Replace the plugs and wires (one at a time) to avoid getting the firing order out of sequence. The coil pack the same way. Most of these have clips on the side or either bolts that hold them on. If you do one at a time you'll have no problems.

Dec 11, 2009 | 2003 Ford Expedition

2 Answers

Rough idling and accelerating after recent tune-up. Cool Pack needed say shop

Best thing to do is go to Auto Zone or Parts Source and have the computer scanned for DTC codes. 
The codes will give you a better understanding why the car is running the way it is and what parts you need to replace if any.
The cool thing is that they will scan for free and give you the how to do it your self it you decide to change the parts your self.
Good luck and hope this helps. It may not be your coil packs, it may just be bad plug wires or dirty fuel injectors.

May 05, 2009 | 2002 Mazda Tribute

1 Answer

98 Toyota Tacoma 2wd, with 2.4 liter

You said like tune up fuel filter was done, wires.

Jul 05, 2017 | 1998 Toyota Tacoma

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