Question about Cars & Trucks
I would get vehicle on a scanner and check live data.
could be a faulty coil pack or injector on cylinder 4. Try putting the coil pack from cylinder 4 onto cylinder 1 and rescan.
If the fault moves to cylinder 1 the coil pack you moved is at fault.
You may have to replace the whole coil pack if individual units are not used on your vehicle.
The injector process is same as above but a bit more tricky due to the fuel pressure in the line...be careful!
If swapping these has no effect you wil have to carry out a compression check on all cylinders and see howthey look against cyl 4.
The shaking is the misfire, the smoke is unburnt fuel.
Dont drive it in this condition you will destroy the catalytic convertor.
I assume the vehicle has a regular service and the spark plugs are in good condition.
note...when this prob is resolved..change the oil and filter, it will be contaminated by now.
Posted on May 10, 2014
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Posted on Jan 02, 2017
Posted on Feb 14, 2009
frajogag: First off, be aware that these bolts are "torque to yield" bolts (streach bolts). What this means is that instead of torqueing the head bolts to a specific torque specification, they are torqued down to a set spec and then tightened by rotating the bolts a certain angle, like 90 degrees. and all of them are turned the same amount.
This means that the shanks of the bolts must be checked to make sure they are not too thin (or the bolt has already stretched beyond limits and is prone to snap if used)
Here is how you check the bolts. Measure the bolt using a micrometer, at the base, or within the first 13mm from the end where it threads in. Then go to about 10mm before the threads end heading toward the top of the bolt. There should not be more than a 0.23mm (.0091 inch) or less difference or the bolt should be discarded.
Torque the bolts down to 98.1Nm ( 72.ft lb)
Looking at the head from the side, so you are looking at the full length from side to side, I will number the head bolts in this fashion.
#1 & 2 are directly in front of you and in the center of the cylinder head crossing it width wise.
#3&4 are to the left of #1&2, / #5&6 are to the right of #1&2
#7&8 are to the left of #3&4 / #9$10 are to the right of #5&6
Now, you have the sequence.
After the initial pull, back off all the bolts in the same sequence and then retorque them to 36 Nm ( 28 ft lb)
Using a torque angle wrench or having the ability to accurately judge turning angles. Rotate (clockwise) to a 75 degree angle. do this to all the bolts using the sequence I had provided.
Rotate the bolts (clockwise) 75 degrees again on all bolts in the same sequence. The proceedure is complete!
Posted on Apr 23, 2009
You have to identify where the oil is leaking. Check the spark plugs if it has oil, you may just need to replace the oil seal in the plugs. If you meant actual burning from the exhaust, you may want to check the head gasket and the piston rings if the oil seeps into the combustion chamber.
Posted on Jul 08, 2009
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