Question about Opel Astra

Opel Astra 2L,2004 model misfiring cylinder 1&4 after engine overhaul

2 Answers

Marvin

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Do those cylinders have good spark? Is compression ok? Is cam timing correct?

Posted on Aug 15, 2019

Ken Davis

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Contributor
31 Answers

Hi did you do the engine overhaul yourself? if so I don't think you have any comeback, but, is a registered agent did the work, you should take it back and get them to rectify the problem at their expense as they are the agents for the Opel company in Germany. Incidentally, General Motors sold Opel and Peugeot, France bought it, so you may have a battle to get satisfaction. Good luck!!

Posted on Aug 15, 2019

5 Related Answers

Anonymous

585 Answers

SOURCE: cylinder 1 misfire

If it smooths out at wide open throttle it's probably not the injector but rather a substantial vacuum leak at that cylinder.

Posted on May 06, 2009

Anonymous

1 Answer

SOURCE: MY #2 CYLINDER IS MISFIRING ON A 2004 F-150 SUPER CREW CAB

First of all, a 2004 model engine has no spark plug wires. Exchange the #2 coil located on top of the spark plug chamber with #1 coil and see if that changes the misfire to that cylinder. Yes, it could be a bad plug if they are aged, but the norm is with the coil.

Posted on May 07, 2009

Michael Stephens

119 Answers

SOURCE: MISFIRING ON CYLINDER 1 VW POLO 1.4 3CYLINDER

I have changed a few cylinder heads under warranty for this type of problem. The exhaust valve guides wear, this causes the exhaust valve to seat badly, giving low compression. if one cylinder compresion reading is more than about 50 psi below the others, then this warrants head removal. It is quite a job, due to the fact that the camshft id chain driven. If you are up for it then once the head is removed, poor liquid into the exhaust ports and see if it leaks out through any of the exhaust valves.

Posted on Jul 23, 2009

paul crocombe

377 Answers

SOURCE: opel astra headlight adjustment

two screws on each headlight control the direction the headlights are aimed. One screw, usually at the top but sometimes below the headlight, adjusts the headlight up and down. The other screw, located to one side, controls the headlight from right to left. Turning the appropriate screw one direction or the other will change the direction the headlight points.
In order to aim your headlights you need to have a flat vertical surface you can aim your headlights at in front of a level surface on which to park the car. If your driveway is level your garage door is the perfect place to aim your headlights.
The tools you will need for this job are simple. Masking tape is used to mark where the headlights are to be aimed and a screwdriver is needed to adjust the headlights. A tape measure will be necessary to measure the distance of the vehicle to the surface you're using to check the aim and to measure the up and down distances from your marks

Posted on Nov 07, 2009

Anonymous

1 Answer

SOURCE: opel astra c14se bad timing spark

may be the tendur it not gd and chek the valve

Posted on Apr 10, 2010

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I have 2007 Opel Astra 1.6 Essentia. It has a miss on low revs. I have replaced The EGR valve as well as crankshaft sensor but to no avail. do you have the answer?

sure lots, you have misfire. when, say EXACTLY.
when does it and when does it not?
guessing is expensive?
misfires in gear or. parked in park or neutral,
or only driving?
why not do the 60,000 mile tune, why not?
spark plugs , that is top of list. not crank shaft sensors.
1: tune it up. spark parts and filters.
2: keyon, CEL glowing , check engine lamp ? good.
3: start car is it glowing now running, yes, that means SCAN it.
4: best practice would be to drive with scan tool connected OBD2.'
and watch to see if you get P030x misfire codes.
The ECU would have told you the CKP crank shaft sensor is bad or good. the ECU does that on all cars, no need to guess and go broke.
if very intermittent it shows up in OBD2 PENDINGS.
the ecu will report 1 in 10 ckp pulses, missing,(sensitive it is this monitor.

Physics.
Misfires:
1: weak compression on 1 or more cylinders.
2: bad spark, (tuneup time and scan it)
3:bad fueling, scan it. see it way off. (can be vacuum leaks)
4: coolant found in the combustion chamber, spark tips look UGLY. nasty . and repeats. with new plug. not looking is FAIL time.
5: EGR closed. at idle, so if misfire is at idle? , bam.
running the EGR is open, so its not egr, if running ,moving are you?

the above order saves time, and cash.
fuel can burn right with bad compression or spark so fueling is dead last.

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