chris015 |
05-01-2012 08:46 PM |
Have them check the pressure for you. If they say "oh its not that" have them do it anyways,better yet have another reputable shop do it for you incase the place you had it done says its fine to get you outta the way. Fuel pressures important.
edit,realized you had a cpi motor. Stop by autozone and get the pressure kit. Its free to loan,BUT you have to leave a deposit just incase you never return it. I think its like 150.00 deposit. but remember as soon as you return it you get every penny back.
Look in the book it comes with and find the fitting # you need for the kit,install that fitting on the pressure check line and hook it up to the fuel nipple on the engine (i think its near the center,near the firewall. you'll see a black cap on it.
Now,turn the key to the on position (the spot right before you turn it to crank it). Look at the gauge. it needs to be above 58ish psi (ideal is 60 or more) and hold above 55 for 10 minutes. If it does,everything passes. if it falls below 55,check it at the inlet of the fuel filter on the chassis. that way if it fails pressure there you know its the pump and not the fuel regulator. If it passes as the fuel filter,and falls at the engine,its the regulator or leaky injector. All this is easy,takes maybe a hour to do everything,15 minutes to check just the nipple at the engine. that'll rule out fuel pump/fuel regulator issues.
Also...ha...so much to think about...but pickup a can of Maf cleaner....if they try yto sell you throttle body cleaner,or carb cleaner tell em to work at mcdonalds. It must be maf cleaner...anyways.....clean the maf sensor. (silver lookin thing that is between the air filter box and the throttle body). it'll have a screen inside it. spray that screen down real good with it. dont scrub it. just spray it. let it dry and test drive it. alotta times they get dirty and can cause all kinds of issues.
might as well throw this in...
Clean the egr valve. its underneath the throttle body. round lookin thing with a wire on it. remove the connecter,the 2 bolts and remove it. you'll see a little piston lookin thing that moves in and out when you push on it. Get some brake cleaner and spray it on it and scrub everything with a toothbrush. reinstall it and drive it and see if anything improves.
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