Question about 2004 Isuzu Rodeo
Cam follower came off the end . put a new one in works great.
Posted on Feb 19, 2009
If you're getting spark on that side, but still misfiring on all the cylinders on that side, it is likely a fuel or air issue. Of the two fuel is more likely. If it was only two cylinders on that side I might suspect a cracked head gasket or warped head, but in this case since all the cylinders on one side are misfiring, I'd check your injector(s) for that side. If you have one injector for that side, check power to it. If you have multi-port injection, check the wiring harness on that side for power in general to all the injectors. Inadequate air is also possible, but not very likely since that much of a restriction of air flow should be causing problems all around.
Posted on Feb 06, 2009
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Posted on Jan 02, 2017
hi there, if you can feel the misfire at an idle but not at a higher rpm than the fuel pressure regulator is bad im working on one right now that has mifire code and random misfire codes coming up
Posted on Aug 28, 2008
A misfire doesn't always have to be ignition... it's just the most common cause. Faulty or plugged injector, low compression. You need to check fuel pressure and test the fuel injector flow. Then check compression. If you don't have tools for these tests, take it to someone who does. Testing is much cheaper than throwing parts at the problem.
Posted on Feb 25, 2010
In modern cars so much can go wrong to indicate an issue and a computer in the car can get confused as to what is really occurring. In most cars a misfire indicates either an incorrect firing order, shorted wires, bad plugs, or bad coil. Since you have replaced the wires and plugs we can rule those out. Im also assuming after the second engine code you pulled #2 plug and made sure it wasnt fouled with oil, was gapped correctly, and reinserted. To produce a sufficient spark for combustion the alternator sends power to a "Coil" which is in reality a storage point that then sends an amplified electrical current down the spark plug wire to the cylinder to fire the plug. If the car is truly misfiring you will notice a rough idle, fluctuating RPM's, and lack of acceleration. If you are experiencing any of these I would look at replacing the coil. If you arent experiencing any of these I would have the code cleared again and complete one drive cycle 100 miles and then have codes read again. If you still get a Misfire error some other causes known to occur with Rio's are fuel filter issues, gas caps, and fuel injector issues. Although rare, these can cause issues with the cars fuel delivery and emissions which can confuse the sensor in the ECU. I would try injector cleaner, replace the fuel filter, and gas cap . If funds are an issue then based on symptoms I would start with injector cleaner first $3, Filter $12, Gas cap $12, Coil $48 to $200+
Posted on Jun 06, 2010
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It can be issue with spark plugs or faulty spark plugs. Also
get the compression test done for cylinders. If any of cylinder shows low
compression then required, then that particular cylinder will cause misfire.
Also get obd codes scanned, the error code will let you know
which cylinder is misfiring or all cylinders are misfiring.
For your trouble shooting I suggest you to refer the help
oinks below. It has step by step details for many engine misfire issues.
Click the link below:-----
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