misfire

Having problems with Bank2 side, passenger, all plugs show rich/fouled and O2 is black. Now this started when I ran through some water, hesitation started, loss of power. Tested, plugs, coils, changed coil wires, check cylinder pressure, everything good. ran Seafoam, octane boost, no...

Hello All, I'm having a problem on Bank2 side, passenger, all plugs show rich/fouled and O2 is black. Now this started when I ran through some water, hesitation started, loss of power. Tested, plugs, coils, changed coil wires, check cylinder pressure, everything good. ran Seafoam, octane...

1996 tahoe lt with trouble code p0304. CA Smog issue. `i got it for a song and now i know why, slightly rough idle, but runs well overall. 1996 tahoe, changed the oil and plugs, air filter and took it to a ca smog check and missed on the 'hc' by by about 36 and failed. max 100, average 26 my...

Lol, I'm a new to me owner of a 2002 Tahoe Lt. And it's a beast! I bought it pretty cheap at a cost of my own labour and money. Not so bad, I got this 5.7 with 280 000 Kms. In my books thats a lot! Everyone says it's worth a dollar, well i couldn't find one cert/emissioned for under 5...

Hi, We are looking to get a remanufactured engine for our Tahoe instead of engine exploration. Has anyone had luck when they replaced their engine? 4 weeks ago we had the 4-wheel drive "serviced" then the engine started misfiring and it the check engine light came one and it said...

i have a 2002 Tahoe 5.3 and let me start by saying that even tho i am mechanically inclined, i am not a mechanic. The problem is intermittent, the truck will start and run normally and even revving the engine it dosnt start the problem. while driving and accelerating all of the sudden you...

i have a 2002 Tahoe 5.3 and let me start by saying that even tho i am mechanically inclined, i am not a mechanic. The problem is intermittent, the truck will start and run normally and even revving the engine it dosnt start the problem. while driving and accelerating all of the sudden you...

i have a 2002 Tahoe 5.3 and let me start by saying that even tho i am mechanically inclined, i am not a mechanic. The problem is intermittent, the truck will start and run normally and even revving the engine it dosnt start the problem. while driving and accelerating all of the sudden you...

I've got a friend with a 1999 Tahoe with a 5.7 equipped with the stock SFI system. About two weeks ago, the vehicle began to misfire and illuminated the CEL. It is throwing a p0300 Random Misfire code. We hooked it up to the computer with my scan tool and saw a lot of misfires. The misfire count...

i have a 2007 that i have had soo many problems with the throttle body has screwed up and ive had to replace it, and the alternator as well as battery. Now i was going down the hyway and it started popping in the intake (backfiring) and had almost no accelleration. i gimped it home and checked...

We got about 4-6 inches of snow/ice/sleet mixture and I had driven about 3 miles and as I started up a hill off the county road it up and died when I started to give it throttle to climb the hill. It was a bit of a bump as I was trying to get up the hill on the ice so was taking a run at it. The...

5.7 motor tore down and found cracked heads, lower end was in great shape. Put new rings, bearings and brand new heads (not re-mans), new injectors, new distributor, new crank sensor, new plugs, new wires, new cap. Motor ran beautiful for 2 weeks, now have misfire on 1, 3, and 5 with 5 being...