What is your question?
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What is your question?
When driving up a hill and I try to accelerate fast to pass or climb a large hill the vehicle begins to skip, jurk and looses power. The harder I push the gas the worse it gets and slower it goes. Anyone have a suggestion? Had it in a shop for 6 hours Saturday. They ruled out: EGR, Intake, fuel pressure, wires, plugs and airflow.
Is there a meter I can use to check it? To be honest a spark looks like a spark to me. Another add to the topic is that the car runs great in park and neutral reved up. Only does this in gear holding break or under load in reverse and drive. Had MAF checked and is good as well.
you will notice a difference if you have low spark,usually will be dramatically lower.the reason why you are feeling it when you load up the engine is because the engine is needing a hotter spark with a load,so if there is a weak coil or bad plug wires it will be pronounced with a load.
Thaanks for the explaination. I tested the spark and it all seems to be very strong. loud cracking noise when arking. the vehicle did throw 2 codes just before I went to check the spark. It shows bank 1 and bank 2 lean.
if you are getting lean dtcs and loss of power on accel.then you are looking at either a maf concern or a fuel pressure concern.I understand that your mechanic has ruled this out,but this is usually a cut and dry type of deal.the MOST common failure on this vehicle in particular when it has to do with missing is the plug wires.they arc through the long plastic boot to ground under a load.so when you check it again,pull each plug wire from the plug slowly and look for arcing out from the side of the plug boot,or circular burn marks on the boot.hope this helps.
Thanks again for the response. Like I said they ruled out the MAF by installing a new one. Fuel pressure is good however no way to check under load. I did find that the brake pressure is low stopping as well. I have been told there may be a vac leak. I have checked for leaks with WD40, water mist, propane and starter fluid. No change in rev. Is it possible for the fuel vapor module or vac to be clogged and not throw a code as well as the TPS or EGR? I am going to check the spark on the plug wires this evening in the dark. Thanks again. If I find the issue I will obviously post the results.
I checked the spark and found 3 bad wires in the long cylinder tube. I replaced the entire set. It seemed to run a bit better and then threw a bank one number 2 or lower O2 sensor code and is back to the no power issue. HELP!!!!!!!!!!!!!!!!