2001 suburban starting issues

[clinebarger]

Did you check the regulator like previously stated? If no fuel was present in the vacuum port, check the fuel pressure (key-on engine off 55-62 psi). Did you change the fuel filter? Check engine light on?

[p_rubottom]

Originally Posted by clinebarger

Did you check the regulator like previously stated? If no fuel was present in the vacuum port, check the fuel pressure (key-on engine off 55-62 psi). Did you change the fuel filter? Check engine light on?

No fuel was in vacuum port, the check engine did come on today when it started running bad. Autozone scanned it said it was a miss-fire on multiple cylinders. (with new plugs and wires?) I did get a fuel filter, going to install it tomorrow after work.. How do I check fuel pressure on this engine? Also the Autozone employee that scanned it said since the rough idle is throwing the engine off balance that means its an odd number cylinder??? is that correct?

[clinebarger]

Originally Posted by p_rubottom

No fuel was in vacuum port, the check engine did come on today when it started running bad. Autozone scanned it said it was a miss-fire on multiple cylinders. (with new plugs and wires?) I did get a fuel filter, going to install it tomorrow after work.. How do I check fuel pressure on this engine? Also the Autozone employee that scanned it said since the rough idle is throwing the engine off balance that means its an odd number cylinder??? is that correct?

P0300 multiple cylinder misfire? When you say odd number cylinders I think 1-3-5-7 are misfiring?

[p_rubottom]

Originally Posted by clinebarger

P0300 multiple cylinder misfire? When you say odd number cylinders I think 1-3-5-7 are misfiring?

Yes, thats correct.