Ive seen both sides, some recommend some dont, and most say if you do a flush that it should be on low mileage vehicles only, So im probably answering my own question but I just want some opinions. Ive got a 95 pickup 211xxx miles when going up hill theres a slight metal ticking noise, not quite clanking or rattling, pretty much ticking, well it sounds like what my van did a little while before it shot a rod through the engine. I was wondering if it would be a good idea to try it because i really dont want to replace an engine already, ive only had it 2 weeks. I dont know if its a "normal" sounds cause its older or if its a sludge build up. The mechanic that replaced the van engine said it was filled with sludge. But, ive heard that if you do a flush it could dislodge large amounts of sludge and clog the engine anyways and you still have to replace the engine.
Another option was to do oil changes more frequently (every 2000 miles) with a synthetic oil and it will slowly clean up the engine
Or the last one Ive heard of was when doing the oil change replace one qt of oil with 1 qt of tranny fluid since the tranny fluid has a high amount of detergent in it, that it would clean it up also.
I dont want to ruin my truck and I dont know a whole lot but I want to take any preventative measure I can to keep her running good without blowing my motor.
Also is it possible to remove the valve cover (i think thats what it was) to check the engine to see if its sludged? Oh its also a V6. Thanks in advance for your help guys!