stumped.....at the wtf moment....
#1
stumped.....at the wtf moment....
so i been working on the blazer in between having a new baby and a new job and i cant get the buger to run right heres whats going on, has no power at all when u step on gas i mean no power at all,if u floor it, it takes some time but it gets up there and when it shifts it will break tires loose on my dirt road.
idles fine real good infact since i replaced the fuel pump with a ac delco version and got away from the airtex,thought it was on its way out as i been having problems with it in the past. changed spark plugs with delco 43ts (got 60-70k outa some autolite plats) and today cleaned egr it was clean and free of carbon as i have a help gasket installed. tried to check leak down but discovered my pressure gauge stopped working wont register anything so cant tell if its leaking down but oil smells like oil not gas. intake is clean on passenger side but did check when had upper plenem off and fpr is not leaking per visual inspection.....im outa idea as its not throwing any codes to try and track down hopefully with some input from u guys ill get it going again......
idles fine real good infact since i replaced the fuel pump with a ac delco version and got away from the airtex,thought it was on its way out as i been having problems with it in the past. changed spark plugs with delco 43ts (got 60-70k outa some autolite plats) and today cleaned egr it was clean and free of carbon as i have a help gasket installed. tried to check leak down but discovered my pressure gauge stopped working wont register anything so cant tell if its leaking down but oil smells like oil not gas. intake is clean on passenger side but did check when had upper plenem off and fpr is not leaking per visual inspection.....im outa idea as its not throwing any codes to try and track down hopefully with some input from u guys ill get it going again......
#5
runs the same when warm or cold, cat is only like 4 years old and it has a lot of exhaust pressure, last year it passed emissions with flying colors don't know if that makes a difference. bad thing is its all welded and i hate to cut it off and not fix the problem as i cant weld nor do i have the means to learn
#7
I still think cat
the exhaust still needs to get out so pressure should be there
get somebody to work the throttle while you stand at the tailpipe ,the exhaust sounds extra muffled when they clog up
My sisters Monte Carlo SS threw no codes but I thought I was going to need to push it up a small hill on a test drive
Her Monte was still under warranty when it plugged
I am not sure if it is true but you may want to try
Years ago a guy told me if you warm it up and hit the cat with a good stream of water to suddenly quench , if it stalls the cat is shot
the exhaust still needs to get out so pressure should be there
get somebody to work the throttle while you stand at the tailpipe ,the exhaust sounds extra muffled when they clog up
My sisters Monte Carlo SS threw no codes but I thought I was going to need to push it up a small hill on a test drive
Her Monte was still under warranty when it plugged
I am not sure if it is true but you may want to try
Years ago a guy told me if you warm it up and hit the cat with a good stream of water to suddenly quench , if it stalls the cat is shot
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