Bosch plugs evaporated into engine 98f150
09-19-2012, 12:01 PM
#1
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Bosch plugs evaporated into engine 98f150
98 f 150 4.6lt v8 Just hit 200,000 km on the engine..
New Bosch plugs were put in at 130,000km
Check engine light came on slowed down, pulled into shop, engine was vibrating..
Code read cylinders 3 and 8 are misfiring, took out the plugs, one plug the electrode and cap was cracked the other one the electrode and cap was black and crumbled into pieces upon touching. Replaced the plugs, replaced the wires.. Less vibration by about 70% but still misfiring..
Drove another 70km, and it went downhill from there. Lost all power, more cylinders started misfiring.. Got parked took out all of my plugs.. about 6/8 plugs the electrodes and insulator caps have evaporated and crumbled into my engine. THESE PLUGS ONLY HAVE 70, 000KM on them..
Running regular 87 octane fuel, never heated the engine, sparks was done by a shop...
So now my engine is hooped.. No compression. Haven't torn anything apart yet but I'm assuming my valves and cylinders are eaten up by these pieces..
In contact with the BOSCH company, they are sending it to higher up... I feel they are responsible for the total loss of my engine..
Talked to a million mechanics.. Said they've never seen anything like this in their life..
New Bosch plugs were put in at 130,000km
Check engine light came on slowed down, pulled into shop, engine was vibrating..
Code read cylinders 3 and 8 are misfiring, took out the plugs, one plug the electrode and cap was cracked the other one the electrode and cap was black and crumbled into pieces upon touching. Replaced the plugs, replaced the wires.. Less vibration by about 70% but still misfiring..
Drove another 70km, and it went downhill from there. Lost all power, more cylinders started misfiring.. Got parked took out all of my plugs.. about 6/8 plugs the electrodes and insulator caps have evaporated and crumbled into my engine. THESE PLUGS ONLY HAVE 70, 000KM on them..
Running regular 87 octane fuel, never heated the engine, sparks was done by a shop...
So now my engine is hooped.. No compression. Haven't torn anything apart yet but I'm assuming my valves and cylinders are eaten up by these pieces..
In contact with the BOSCH company, they are sending it to higher up... I feel they are responsible for the total loss of my engine..
Talked to a million mechanics.. Said they've never seen anything like this in their life..
09-19-2012, 12:06 PM
#2
You will not get anything. I have actually seen this and it not the plugs fault. It starts with a bad coil or low coil output. Also plugs do not last longer than 50k miles. Also you should have replaced all 8 at one not just the ones that were misfiring.
09-19-2012, 12:20 PM
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Shop who I stopped at only had a couple(small small town) Then once I got to the city I took out the rest and exchanged them. I talked to Bosch they said change plugs every 100, 000 miles.. There is only 43,495 miles on these plugs.
09-19-2012, 12:25 PM
#4
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I had a set of these plugs do this once before in my Ranger, replaced with motorcraft which I should have used in the first place and never had another issue. Bosch plugs are junk, stick with OEM for plugs.