Car starts stuttering when i put the petal to the floor now??!?

mazda mx6 v6. quits for a while, then will do again if i rev back up. just got car back from fixin cause rpm would shoot up then it would stall out when im driving it, (myt have seen previos quest). had diognostics done, nothing wrong. im gunna take it back 2mrw but just want insight.

Car starts stuttering when i put the petal to the floor now??!?
Most likely a fuel pump problem





4/10 - Fuel pumps aren't overly expensive, the labor to install will be the larger part of the cost. Bottom line is you want to get this fixed - what happens if this car dies while crossing a railroad track and the train is coming - this is not something to wait on.
Reply:could be the rev limiter or vacuum leak
Reply:happened to me, must be a fuel pump prob. go to a car place and get some seafoam and put that into ur car. good to go
Reply:if it goes away it might be a fuel pump but i think its your fuel regulator its loosing pressure. also called bleed off. the regulator is weak and cant hold the pressure so the engine sputters until the pressure catches up and runs better. to test it you have to put the car under load and rev it up which most shops can not do. that is what dynos are good for besides just seeing how much hp your engine needs. the shops that have these are the one that test for smog before you go to test at a smog station.





fuel pressure increases as the load and rpms get higher. thats why most poeple think its the pump.








93-97 PROBE MX6 MX-6 JDM FUEL ebay PRESSURE REGULATOR CHR -


$15.99











Category Fuel Pressure Regulator MAZDA


Item Number FRMMX6V6


Make MAZDA


Name MX6/MX-6 2.5L DOHC V6 1993-1997 MODELS


Price $105.00 US
Reply:possible fuel filter problem or fuel pump problem.