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96 caddy denville and the engine light blinking while driving on the highway And in town did a full tune up wires plugs fuel filter lost power

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  • 248 Answers

Engine miss fire - if you plug it up to diagnostics you will likely get P0300 - P030x errors. Check plugs, ignition coils and if that does not help look towards fuel injectors.

Posted on Jan 17, 2013

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Posted on Jan 02, 2017

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SOURCE: 2000 ford explorer 4.0 x-engine is stalling, missing and lose power while driving

I personally would check the fuel pressure. Then I would go back to the coil. I have seen brand new bad coils out of the box. The symptoms of a loss of power point to this component, especially if the car idles well, but loses power when accelerating. Please do not rate this reply - we all are left to grasp at straws since you have changed pretty much everything. Good Luck. Please post the final fix of the problem.

Posted on Oct 28, 2008

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SOURCE: 96 tacoma 4x4 2.7 engine cuts out randomly, like

dont look for air when the car cuts out its most likley spark or fuel when it cuts out ranomly its usually a sensor or relay that is faulty check fuel pump relay and camshaft or crankshaft sensors but first narrow it down to spark or fuel if possible also if check engine lite is on check codes

Posted on Mar 26, 2009

  • 1 Answer

SOURCE: My 2002 Hyundai Elantra Gt (2.0L)engine runs rough

The Hyundai online shop manual and my newly arrived Hyundai shop manual kept pointing to the coil as a possible problem. While preparing to check coil continuity I discovered the pigtail connected to the bottom of one of the coils was loose and the contacts were burned. This is the coil that supplies spark to plugs 1 & 4, the same ones that kept showing up each time the check engine light illuminated. After cleaning the contacts and making sure the pigtail was securely attached to the base of the coil I have had no further problems.

Posted on Jun 15, 2009

philschneide
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SOURCE: 1991 Honda Civic 1500 idles irregularly, with check engine light.

I think I would suspect the fuel injectors, especially since that is the code you are getting. Fuel injectors clog up, get dirty, stop working the way they should. They can be cleaned (you can remove them and send them to a company that cleans them and makes them like new, or, they can be cleaned in the car by some garages, or, you can get a can of Sea Foam spray and spray it into your throttle housing several times to try to do some cleaning that way, or, you can dump a can of Sea Foam (non-spray) into your gas tank and run it with the fuel through your injectors). You should probably check when you first start the car to see if you are getting any leakage from one or another injector (one or another may look moist or wet if the seals are leaking). You can also do the long screwdriver test (hold the bit of the screwdriver against each injector in turn and listen with your ear against the other end to see if each is clicking regularly). I would try the Sea Foam first.
I hope this is helpful in getting you started on a fix.

Posted on Dec 16, 2009

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SOURCE: 1996 Honda Accord Rough Idle Even After tune up

Perform a valve clearance inspection and adjust if necessary. Tight or sticking valves will cause a misfire or rough running concern. Note: Perform valve adjustment when the engine is stone cold. 4cyl: INT 0.26mm EXH: 0.30mm (V6 engine are hydraulic and no adjust necessary.) Also check for a sticking or stuck open EGR valve. For diagnostic purposes only: Remove the EGR valve. Place a business card over the EGR passage and bolt the EGR valve back on. This plugs the EGR ports and if the misfire goes away the EGR valve is partially stuck open and is defective.
Check for low fuel pressure. Check for low compression. Check cam timing. Check for a weak ignition coil. Also don't over look the possibility of worn or broken engine mounts which cause excessive engine movement and engine vibration. -hope this helps

Posted on Mar 05, 2010

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2 Answers

After driving 15 to 30 minutes when you come to a stop the engine shuts down.


somethins gettn hot in the electrical-components are old an worn makin resistenc--take off distributer cap and inspect for corrosion inside-clean or replace--plug wires cud be old tho they look gud outside--coil shud be tested and ignition module--may also be wiring issue in harness--or a fuel problem

Jan 16, 2015 | 1994 Honda Passport

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My 2000 malibu chugs while going down highway 5 miles an hour


If you have done basic tune up stuff, I would check fuel pressure with gauge installed and running down the highway. Other possibles are bad ignition module, loose wire somewhere in coil circuit, bad fuel pump, filter, many others.

Oct 16, 2014 | 2000 Chevrolet Malibu

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1989 f250 Ive had to fill up front tank everyday only driving little over 100 miles (highway)


Check for black smoke out of the tail-pipe when the engine is revved. Black smoke means unburned fuel. The most likely culprit is a plugged air filter/air intake. A plugged exhaust, especially the catalytic convertor will kill your fuel economy and power. It may also be in need of a good tune-up (spark plugs, filters, ignition wires, distributor cap/rotor). Also check tire pressures and make sure that you don't have any seized brakes.

Feb 13, 2014 | 1989 Ford F 250

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My car jerks after your driving for awhile almost when you driving 10mins on the highway


could have bad ignition coil or fuel filter in fuel tank need replacing could have lean fuel misfire caused by clogged fuel filter or dirty fuel injectors.make sure using correct spark plugs and have plugs gap correct.

Jun 16, 2013 | 2008 Hyundai Sonata

1 Answer

When do i need my first tune up


That depends on your driving. Spark plugs can claim 100,000 miles before a change. But if you drive a lot in town stop and go, you will be putting more hours of running time than you would if it was 100k highway. I have run across a lot of vehicles that state 100,000 on ignition. The plugs may be manufactured with a hard substance such as platinum but the caps, rotors and wire are not and a tune up was needed around 75,000 miles.
The first tune up is no more different than any other. The oil on the other hand, if you did not know what was used from the factory then maybe 3000 and if you use full synthetic then go to around 5000 afterwards. Replace the fuel filter if not every oil change every other. I like doing them that often as they are cheap enough and a clean filter never hurts. It use to be said to change an oil filter every other oil change in the owners manuals. I always did the filter every change.
Transmission filter, again, depends on your driving type. Just don't negelect it or else its going to cost more than a filter and fluid later on.

Sep 13, 2011 | 2010 Dodge Journey

1 Answer

1997 Mercury mountaineer. 143,000 miles. Running rough with the service engine light on and when driving down the highway it cuts out and the engine light flashes.


Hello Sdhesseltine.

The flashing check engine light is telling you the engine is misfiring and your description of the problem confirms that.
There will be a code stored in the vehicles engine computer that will tell you which cylinder(s) is/are misfiring.
Spark plugs, ignition coil, fuel injectors or internal engine problems will cause this.
If it has been a while since your last tune up it would certainly be a very good place to begin.
The usual tune up stuff, spark plugs, air and fuel filters for the basics.
A fuel filter will not be at fault in this case but is part of a tune up on this model.

If you require further advise, please ask me here in comments, be glad to help.
Thank you for using FixYa.

KL

Feb 01, 2011 | 1997 Mercury Mountaineer

1 Answer

The vehicle every now and the loses power as if there is dirty fuel in system


change the fuel filter and add isopropel based water remover to gas tank if it does work do a full tune -up, plugs wire air filter, good luck

Dec 28, 2010 | 2005 Chrysler Town & Country

1 Answer

Hard shift into 2nd gear


suspect tune up (wires ,plugs ,filters )
check fuel pressure
and if u have check engine light on need to scan for codes
let me know

Oct 05, 2008 | 1997 Lincoln Town Car

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