I can't believe it when we first purchased this venture it ran good for about 3 months then they had to fix the head as coolant was leaking into the head, after we got it back we drove it a bit the the engine light was on so we took it in for service so they said the head has a problem & they tried to make me pay for it again, which i refused and after a long conversation we left with no out of pocket expense, drove it 2 months engine light comes on, sensor bad, drove it 2 weeks engine light comes on again, so we took it to pep boys for free engine analysis they said it needs a full tune up which would cost about $580.00 wires plugs, etc, my dad was a cert mechanic & body man i was backyard mechanic body man, etc just by the sound i don't think it is a tune up & do not have the $ to spend to get it fixed especially if it is not what they say it is, so 2 days later after calling 4 other mechanics the Chevy Dealer next block over has diagnostic test so we drove it over, they say that the #3 cylinder has no compression and that there is internal motor problems and they guesstimate the cost to be over $2000.00 i definitely do not have even close to that kind of $ the van is gorgeous looks as i just pulled it off he showroom floor, we love this van, this is my mobility vehicle that has the power chair lift that i take to my doctor appointments as i am a paraplegic with a spinal cord injury unable to walk if anyone can help me out here i will greatly appreciate it i am in dire need of getting this running again. Thank you

The engine has always had a tick. Finally, I can explain why. The rocker arm assembly mounting bolts have a defect either in the design, torque or threading. What finally happens is the tick will become very loud and your engine will start missing. This is because the rocker arm assembly bolts have striped out and come loose. Had the one head and bolts replaced and the ticking was almost gone, but still had a slight tick when engine was cold. That tick is now gone since the other rocker arm assembly came loose while on vacation just two weeks after getting the one side repaired. The van is now going to be sold as is or donated to Good Will. No more GMs for me after only owning Chevy for 30 years. I will enter my complaint about my Silverado separately.