Misfires code PO300, PO304
#1
Misfires code PO300, PO304
Okay, so my friend just bought this 2001 Disco II SE7 with 130k miles. Nice vehicle. He knows nothing about trucks/cars. I took the 800 mile round trip with him to pick this truck up. Came equipped with a check engine light. Owner lied to us about the codes( the codes before the shop repair below were 304 & 1319). So, as I was researching after checking the condition of #2 & #4 spark plug, I was a bit surprised no signs of misfire on the plugs. So my friend (without me knowing) takes his Disco to a shop. $940 later he picks the truck up (wires,plugs,coil packs installed). In the morning, the CEL came on. Codes came up PO300 & PO 304. How could this be? It seems by this sites topics that these trucks are very picky about which plugs & wires should be installed. Returned it to the auto shop two days ago, no feedback yet. Are these trucks just prone to misfire codes? We ran into a woman with a very nice 2004 Disco and she was very happy with it, although just had a CEL come on @125k. Also my friend' truck has a spongy brake pedal (the prior owner just had new brakes & rotors installed). We bleed them, still have the same condition. Thanks for any help. This Rover is loaded with goodies
#5
Code 300 & 304
The CEL is NOT flashing. Now the mechanic after charging 1k and keeping the truck another two weeks, says moisture is in #4 cylinder. I thought other posts here state no coolant passages long #4? Are there liners in this cast engine with aluminum heads? The mechanic is putting dye in the coolant and I told my friend to just pick up the truck until we can sort this out. After all, the code #300 didn't appear until the shop did the 1k worth of work. I am leery of this shop. You'd think that before they decided to do the 1k work they woulda diagnosed/addressed the CEL #304 & #1319 before doing all that work. They confessed they didnt' do any diagnosing at all until after the fact of the new CEL #300 #304. Frustrating
#6
the saga continues misfire code 304
thanks again mike for your prompt assistance when I was last here over a month ago. We let the Rover sit (other tasks to complete). We decided to avoid the shop that charged $940 for tune up and coil packs since they didn't diagnose FIRST prior to work. We decided to attempt using a solution to (guarantee?) stop coolant from entering #4 cylinder. What do we have to lose? Alternative seems to rebuild or replace engine. The Disco II will run fine, then all of a sudden want to overheat and surprise, needs more coolant. All hoses have been checked and replaced as necessary right after this thing was recently purchased. Any other thoughts mike? That second and last shop visit resulted in them adding dye to the cooling system (big deal, misfire is misfire, lol).
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