Nissan Repair Questions? Ask a Mechanic for Answers ASAP
Can you check the vvt advance? Did you verify the vvt solenoids are working?what did the inside of the engine look like when the chains were done? why did you do the chains and what was the original issue?
The engine had a blown head gasket. I'm not sure how to check the vvt solenoids. We took the engine out of the car and put a used engine in. There is only a slight miss and the engine will shake a little. When you drive the car it drives ok. At idle only has a slight miss and the engine shakes. After driving for a hour or so it continues to get worse.This problem is only at idle. We did not put new timing chains. We had to take them off and put them back on. We have checked them 3 times with our books and computer print out all the marks are correct. We did do a valve job on the original engine and the block ended up being warped so it continued to leak from headgasket, so thats why we put the used engine in. The weird thing is after doing first headgasket job it had idle problem and slight miss, then we found out block was warped and heads were not good. This time used complete engine and it does same thing. We checked headgaskets on this engine and they are ok. I dont know what it could be at this point. Harmonic balancer? timing is still off somehow?