GMC Troubleshooting Questions? Ask a Mechanic for Answers
Hi, My name is ***** ***** for the delay.I will do my best to assist you.
will it start at all now?
ok..has it ever started sense you replace the timing chain?
are you sure it is in time?
it is possible to got the chain out with the distributor when you installed the chain
1-remove the #1 plug.hold your finger on the plug hole,have your help to bump the starter till you feel air[compression] start to come out of the plug hole2-then,align the balancer mark to 0deg tdc..now you have the #1 piston up on the compression stroke3-now,install the distributer to where the rotor is pointing to the #1 plug wire terminal on the inside of the distributer cap..now it is in time..
see.even though the timing chain may have been installed correctly and is in time,,the distributor can be 1/2 turn out[180deg]
no..but it should have at the least fired up even if it was getting too much gas..
a few things could vcause it to get too much fuel.
1-too much fuelpressure-make sure the fuel return line isnt kinked
2-the map sensor
3-the ecm[computer] itself
but sense it ran before the timing chain,,it makes me think it may be out of time
yes,,i dont think it is correct either.
yes,you will need to check it to be sure
you will neeed to check the fuel pressure to determine if it is a pressure problem,,these should never have more than 13psi of regulated pressure..
again,first make sure it is in time..
then check the pressure,if pressure is good,then check the map sensor,make sure you have a vaccume to the map
if the pressure and the map is good,,then you will need to replace the ecm
you are very wecome