Close

Getting P0300, it used to be P0304 an change! on 1999 Isuzu Rodeo

I just replace sparks, plugs, EGR Valve, clean the entire EGR pipes, o2 sensors seems to be ok, the car runs roughtly, and i spot some bubbles at the coolant

Asked by for the 1999 Isuzu Rodeo
May need to re-learn the crank sensor signal. You need a factory scan tool to perform this procedure. Correct spark plugs are improtant and the gap should be correct. Some bubbles in coolant could be normal if you are not loseing coolant or not overheating. If it is running rough I would try and disable spark to each cylinder one at a time to see if one of the cylinders is not contributing thus could mean a mechanical , fuel injection problem or an weak spark to a cylinder.
3 more answers
seek diag and est from your mech
Get diagnosed - possible headgasket leak. AFTER FULLY warmed up and system purged , bubbles ARE NOT NORMAL.
reset codes and drive
Qualified Local Isuzu Shops
Qualified Isuzu Shops For This Repair
921 N Parker St
Orange
95
Technical Ability
93
Tools & Equipment
92
Customer Service
96
Customer Amenities
(714) 486-0367