gettin poping under acceleration with a load did fuel filter plugs (useing ac delco) its a 2002 chevy silverado 3500 dump air filters clean no codes
Help: 8.1l problem
- Thread starter ChevyTruckGuy78
- Start date
Fuel Psi, Dirty MAF, O2's? All things you need to check. If all checks out try running a Crank Relearn
01-02 had CPS problems. Might want to pull up service records to see if that was ever replaced. If its shutting off sporadically and hard to start is also an indication of that BUT is also conditions of fuel pump probs. Personally Id check fuel pressure. Pumps are known to go. I just replaced mine with 116K miles and Ive replaced them with only 60K on. DO NOT get cheap ass pump. Get a Delphi. Car quest was cheapest around here.
ill clean the maf and check teh fuel psi i should still have my old gauge and will aslo check for old codes or pending codes to see if that can help too
496 BB is right about the pumps hence I suggested fuel psi first :thumb: Flippin GM pumps love to die from anywhere from 40-150K miles :spit: If you see a GM no start being towed into the shop you work at. Bring a assistant and a rubber mallet for the tank!
And as suggested Delphi pump only.
And as suggested Delphi pump only.
its a dump so i dont have to drop the tank at all but i have no time to even check it looks like another storm with out getting it even looked at its my main plow veichle
What's the forecast in CT look like? there saying 10-17" of snow on the South Shore.. Quite the vague range.
the weather forcasters are idiots the last storm was supose to be 1-3 and then turned in to 12 inches so who knows with these idiots
Good to hear! We got the 1-3" we were supposed to get.. But yup who knows with the idiots predicting the amounts
Umm yea its pretty much the exact same thing considering Delphi makes the GM pumps. Only difference is about $200 more for Delco.
havent been on but it came back an hour into plowing well as soon as i get time im gonna check the fuel pressure and so on this is really pissing me off its my main truck. i had 2 trucks go down with bad trans and 1 with a broken rear axle and one shattered leaf spring 5 out of 7 springs broke ugggggggggggg whats next
55-62psi key on engine off.
We had one snap off the very top of 1 exhaust valve that did this. Ended up replacing all the exhaust valves on the drivers side, pass side is still perfect? Sarted out ticking, then popping finally pulled off dr side vc and saw first exhaust valve rocker sitting on the spring. didnt loose the keeper just the top of the valve was missing. also the rocker arm pedastal studs will back out and cause this problem.
We had one snap off the very top of 1 exhaust valve that did this. Ended up replacing all the exhaust valves on the drivers side, pass side is still perfect? Sarted out ticking, then popping finally pulled off dr side vc and saw first exhaust valve rocker sitting on the spring. didnt loose the keeper just the top of the valve was missing. also the rocker arm pedastal studs will back out and cause this problem.
no ticking no nothing unless u put it put a load on it and it then it pops otherwise the motor is so quiet
i find i get a flashing cec light when i keep it poping under a heavy load trying to keep speed climbing hill and after i get to the top or let off it goes away and a flashing cec if i remember correctly its froma misfire that can cause possable cat damage
yes, thats why it blinks, possible cat damage. fuel pressure is within range also. Do you have acess to a portable scanner, if so you can track miss fires under mode 6 or some just have a universal missfire counter and prove which cylinder it is. Then we may be able to further help.