Question about 1996 Chevrolet Blazer

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My mechanic is stumped! #5 cyclinder not getting fuel. Replaced fuel injectors plugs and wires compression is good computer indicates fuel is getting to #5. #5 cyclinder still not firing.

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Check valve adjustment on #5, is cam lobe worn?

Posted on Oct 07, 2011

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Um, number 5 coil pack ok? if no separate coil pack. meaning 1 coil sparks all cylinders, then replace distributor cap and rotor. if after new distributor cap and rotor replacement still no #5 spark, replace distributor.

Posted on Aug 10, 2010

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Use injector node light to check for voltage at harness plug... If there's spark at the wire and fuel pressure, then must be clogged and or partial clogged injector... dose the engine run smooth with miss? Did you use a new injector on 5 ?

Posted on Mar 10, 2014

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Posted on Jan 02, 2017

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SOURCE: 2000 chevy blazer, truck cranks

Does your battery go dead?

Posted on Dec 18, 2008

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SOURCE: wont start has fuel and has spark

RC ralston
Your problem is a leak in the cpi pletium most likely the pressure line has a leak
had same problem with mine $45.00 PRESSURE LINE KIT AND $15.00 GASKET FOR PLETIUM and 2 hours labor problem sovled.
You can remove vortec cover and remove air regulator to look inside pletium. I had gas vapor on driver side . that is where fuel lines are. fuel regulator is on passenger side. turn key on and look in hole and see where fuel is spraying. taking pletium off you can again turn key on and make sure where fuel is coming from.

Posted on Feb 06, 2009

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SOURCE: My 2000 Chevrolet S10 ZR2,

I have done a full engine replacement on these, a zr2 to be exact. I have found that a p0300 (multiple misfire) usually points the the Piece of **** injection spider, then I had a p0301 as well after replacing that with the multiport unit upgrade and found that the spark plug electrode folded over shorting to the center conductor.

Marc Reaves

Posted on Sep 20, 2009

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1 Answer

Cyl #1 misfire chk engine light


Two additional possibilities:
  • Fuel contamination (worth siphoning and replacing ALL of the fuel to eliminate the possibility, especially if you have been using ethanol blend fuel);
  • Bad spark plug wire (despite proper static resistance). Just replace ALL of the spark plug wires.

May 14, 2015 | 1997 Kia Sportage

1 Answer

1990 2.9liter ford ranger and its misfire on4,5,6


check your fuel injector wiring harness connectors with noid light one wire has power constant the other is a pulse to actuate the injector all the cylinders have good compression and all that you have done and still misfire then it has to be injector or wiring possible bad ground , those 3 cylinders is on the same bank , noid lights you can get at your local auto parts

Jan 04, 2014 | Ford Cars & Trucks

1 Answer

Fuel on cylinder number 5 spark plug


you need to run new injectors and injector leads.

Aug 29, 2012 | 1994 Oldsmobile Cutlass Ciera

2 Answers

P305 code we have changed the spark plugs and wires we have replaced the fuel filter and had diagnostics done on the car and the mechanic says there is nothing wrong with the cyclinders


This is what all should be checked:
P0305 indicates the PCM has detected misfires on cylinder number five.
Here are six common problems that may cause OBD trouble code P0305:
  1. Fouled, cracked, worn or otherwise misfiring spark plug (Replaced)
  2. Bad ignition wire - burnt, cracked, carbon tracked wire or plug boot (Replaced)
  3. Defective ignition components - ignition module, ignition coil, distributor cap, etc..
  4. Vacuum leaks
  5. Clogged or otherwise defective fuel injector
  6. Internal mechanical engine fault, ie., low cylinder compression, bad valve, collapsed lifter, etc..
The aforementioned list covers the most common causes of P0305 in the order we feel is most likely to occur based on our past experiences. Certainly, each situation is different and there are other possible causes for cylinder misfires. Here are other causes we've seen (in no particular order).
  • Low fuel pressure
  • Leaking fuel pressure regulator
  • Poor fuel quality - water in gas tank
  • Uneven EGR flow caused by carbon build-up on engine with multiple EGR ports
  • loose or corroded fuel injector wiring
There seems to be a few things that have yet to be checked by your mechanic.
I know it is frustrating when the OBDII codes don't point you directly to the problem. To be hones this is something that I can not solve from here. However I hope that with the above information you can get your misfire detected code to go away after the real problem is discovered.

Kelly

Sep 26, 2011 | 1999 Toyota 4Runner

1 Answer

2000 S10 with 4.3 V6 has P0305 trouble code, replaced Cap, rotor, plugs, wires, still missing and running sluggish and hesitating. could Cat. Converter be bad? occassional rotten egg smell and lots of...


P0305 is the generic DTC (Data Trouble Code) for cylinder #5 mis-fire detected, and you have already eliminated the ignition tune-up parts as the problem, the next procedure should be a compression check, at least on the #5 cylinder to rule out the possibility of a mechanical mis-fire. If the compression is good then check the pick-up coil located inside of the distributor for any damage, and there is a possibility that a fuel injector is faulty or has a broken fuel line, and if the upper intake manifold is removed, and the large wire connector and fuel lines replaced back on the fuel injector assembly, then cycling the ignition key off and on several times will show if there is a fuel leak on any of the fuel injector lines, and removing the fuel injector nozzles from the lower intake manifold and then cranking the engine over (have the ignition coil connected but be certain to have the ignition coil high tension wire to the distributor cap grounded) will show if any fuel injectors are not firing or have a plugged up nozzle. The original fuel injector assembly in that vehicle has the actual fuel injector inside of the injector assembly block and the fuel travels through a small plastic tube out to a fuel nozzle attached out on the lower intake manifold for each cylinder, and a replacement fuel injection assembly is made a lot better and will have the fuel injector mounted out from the injector assembly block on the end of a larger heavier plastic tube with covered wires running back along the fuel tube to the injector block. Do you remember what the #5 spark plug looked like when you removed and replaced it and did any of the spark plugs have a black sooty carbon fouling? The #5 cylinder is located at the rear spark plug on the driver side and here is a firing order diagram to assist you. The catalytic converter would not be the suspect and moisture or clear liquid dripping from the tail-pipe is an indication that the catalytic converter is functioning properly, unless coolant or liquid is running out of the tail-pipe, then there might be a faulty intake manifold or cylinder head gasket, and a rotten egg smell is usually caused by poor fuel if the smell is coming from the exhaust, or an over-charging battery condition, (voltage at the battery should be between 14 an 16 volts when the engine is running) and let me know if you require the procedure to remove the upper intake plenum, or if you require any further assistance.


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Oct 23, 2010 | 2000 Chevrolet S-10

1 Answer

Engine stalls #6 cylinder not fueling. Replaced fuel injector, plugs and wires. Checked compression. All good. Removed injector rail and placed #4 injector plug on #6 and injector started fueling. ...


sounds to me that you need a computer since the injector gets its signal from the computer. You can get a noid light from auto parts store to test the wire attached to the injector. The light should flicker when cranking the car. No flicker chances are you need ecm.

Oct 07, 2010 | 1995 Buick LeSabre

1 Answer

I am getting error code P0203 on my 2000 Hyundai Sonata, V6. This indicates #3 Fuel injector open circuit. Have replaced fuel injector and continuity of wiring is strong. I am stumped as I continue to get...


Ok.... let's get this clear -- you have 'VERIFIED' no problem with the wiring between the injector connector pins and the ECM?? and you have good pin tension at the injector? and good pin tension at the ECM? and good continuity between the injector & the injector fuse? If in fact this is SO, you have a bad ECM (Engine Control Module). 303f9ab.jpg

Sep 07, 2009 | 2000 Hyundai Sonata

3 Answers

99 vw passat sw 1.8t #3 cyl not firing. Compression good & even,replaced plugs #3 wet, fuel fouled. Replaced coil pack,still misses,all connections look good. Any suggestions?


ihad the same problem.. its not the coils or anything like that.. and any reg mechanic wont know the prob unless they under vw.. u need to replace ur power output stage.. thats what cylinder 3 misfire is.. after i fixed it my car is good as new. i

Jun 26, 2009 | 1999 Volkswagen Passat

2 Answers

99 5.2 durango :pulled codes for multipe missfire cylinder #5-7


Aloha We have just replaced all of what you have replaced, plus water pump, fuel pump, pcv valve and 02 sensor. Took it to mechanic today we had misfire on 1,2,6,7. Mechanic said that the 99 dodge is known for bad computers, he checked ours and works great turns out that it was the coil. Ours was jumping 1/4 inch and had a orange/yellow spark. it is supposed to have a 1 inch spark and be blue. This has solved our problems after 527 dollars later.
Check the coil!

Feb 26, 2009 | 1999 Dodge Durango

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