I have a 94 1500 4x4 with the 5.2l, 125k miles
How do I trouble shoot what sounds like a valve tap?? It does seem to come and go. And it gets louder as the RPM's go higher. I am no expert so I may be jumping to conclusions saying a valve tap. I checked the oil, and checked the level. Good oil pressure (about 40psi), no back firing and MPG have not changed. If I listen under the hood while revving the RPM's, it sound like it is coming the valve cover area or maybe the injectors.
A little history....
Back in July I replaced the head gasket and all the other gaskets that were easy to replace at the time...i.e. intake, pletium, etc.
Besides have a check engine light that give the a code of 32..problems with the egr (which I have not had the time to look into), she has been running pretty good. Just hard to start but I think the fuel pump needs to be replaced due to the check valve in the fuel pump bleeding by.
I torqued everything down according to my book, even set to cam to the neutral position before torquing down the rockers.
Do I need to pull the valve covers again and re-torque?? Will a valve tap be visible with the valve covers off??
Any suggestions would help greatly.
How do I trouble shoot what sounds like a valve tap?? It does seem to come and go. And it gets louder as the RPM's go higher. I am no expert so I may be jumping to conclusions saying a valve tap. I checked the oil, and checked the level. Good oil pressure (about 40psi), no back firing and MPG have not changed. If I listen under the hood while revving the RPM's, it sound like it is coming the valve cover area or maybe the injectors.
A little history....
Back in July I replaced the head gasket and all the other gaskets that were easy to replace at the time...i.e. intake, pletium, etc.
Besides have a check engine light that give the a code of 32..problems with the egr (which I have not had the time to look into), she has been running pretty good. Just hard to start but I think the fuel pump needs to be replaced due to the check valve in the fuel pump bleeding by.
I torqued everything down according to my book, even set to cam to the neutral position before torquing down the rockers.
Do I need to pull the valve covers again and re-torque?? Will a valve tap be visible with the valve covers off??
Any suggestions would help greatly.