need help

Airman White · #1 08-05-2009, 01:07 PM

i have the 4.0 v6 and the problem is that when i put my foot into the gas it makes like a pinging sound until it shifts back down to low rpms. any ideas on what it coudl be???

STL · #2 08-05-2009, 01:41 PM

Clean the MAF sensors with electrical spray cleaner.

What gas are u running in it 86, 88, 89, 90

Airman White · #3 08-05-2009, 03:34 PM

i run 89 in it but when i put super in it doesnt do it as bad

STL · #4 08-05-2009, 07:29 PM

Okay then clean your MAF sensor that's what it can be

If u need help I can post pictures on how to clean it

the higher octane is just masking the problem instead of curing it.

Airman White · #5 08-06-2009, 02:23 PM

the funny thing is i had to replace my maf sensor only a couple of months ago is there more then just the one inside the air intake tube?

02'4.04x4 · #6 08-20-2009, 10:39 PM

Are your running one of those ebay super duper chips? Your timing is too advanced, or your gas is too retarded. I would run A good fuel system cleaner, and possibly a pint of 2 cycle oil in a full tank of gas. Then I would not buy gas from wherever you bought it before. The sound is appropriately dubbed "Ping".

On a separate note I would not use electrical cleaner on the MAF sensor standard electrical cleaner has a special additive to protect the connections it cleans. You can find the right stuff at a good auto parts store. This is only my educated opinion, it is not meant to offend, but to possibly save someone a headache.
The right stuff is named "MAF Cleaner". HTH