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For starters definitely check the basics – air cleaner, spark plugs, fuel filter, condition of the plug wires (if your’s has any) and look for any obvious vacuum hoses loose or cracked (listen for hissing), etc.
Do you have access to a OBD2 scanner? That would really help give some clues as to what’s going on. For instance, it may be a flaky O2 sensor, but it’s tough to know without looking at the PID values.
As for fuel injection cleaner, IMO there’s only 1 that’s worth trying – Chevron Techron – because it was called out by name by companies like Porsche and BMW to solve issues back when our fuel was causing problems with their fuel injection systems. Buy the Techron concentrate that comes in a black bottle, not the stuff in a blue bottle, and not the products that say ‘contains Techron’ because they can be as little as 1%. If that doesn’t work, and you still suspect injector issues, then have a shop do a cleaning with the stuff that runs right into the fuel rail.
But the main thing is trying to gather some diagnostic evidence as to what’s causing the problem – otherwise we are just guessing.
A+ on checking the basics. you may need to clean your throttle body. heres a video that Eric did. as mentioned above a tank injector
cleaner may be used (sea foam is my choice) how many miles on the vehicle? when was the last time you had a tune up?
good luck and keep us posted. C8-)http://www.youtube.com/watch?v=41yFXjib … plpp_video
+1 on all the above posts.
However you did post your question in the wrong section –
[quote]This forum is for those of you that have taken the time to put together step by step instructions for the repairs that you have performed. I’m not the only one thThanks for the posts, I checked my plug wires, I changed the spark plugs, new intake filter, need to change pvc filter and valve, I just changed the fuel filter. I do have access to a diagnostic tool and it didn’t find anything wrong with it besides my tone ring was missing in my right rear rotor. Anyways, I looked at the video to see if there are leaks in the system and I will see if there are any tomorrow.
Again, thanks for the posts and have a good night.
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