SOLVED: Another misfire chasing threads (2008 express van)

[OR VietVet]

You have to remove the passenger seat? What kind of hokey crap is that? Engineers can be idiots at times. I would not have one of those vans on a bet.

 

[Tonyrodz]

You have to remove the passenger seat? What kind of hokey crap is that? Engineers can be idiots at times. I would not have one of those vans on a bet.

You don't really need to remove the seat, but it makes it so much easier and manageable if you do. I do the same thing.

 

[Tonyv__]

You have to remove the passenger seat? What kind of hokey crap is that? Engineers can be idiots at times. I would not have one of those vans on a bet.

I really considered the Nissan vans because of engine accessibility. But when I was searching online reviews. A lot of people made a valid point that the Nissan vans sacrifice a decent amount of cargo to have a full size hood in the front... and also cost was a major factor as well..

Unless you’re flexible, that passenger seat needs to come out lol. If I’m not mistaken. I think you can only slide the cover up a foot or so if you leave the seat in. The seat needs to come out to completely remove the engine cover out of the way
.

 

[Tonyrodz]

I really considered the Nissan vans because of engine accessibility. But when I was searching online reviews. A lot of people made a valid point that the Nissan vans sacrifice a decent amount of cargo to have a full size hood in the front... and also cost was a major factor as well..

Unless you’re flexible, that passenger seat needs to come out lol. If I’m not mistaken. I think you can only slide the cover up a foot or so if you leave the seat in. The seat needs to come out to completely remove the engine cover out of the way
.

I also like thise Nissan vans, especially the ones you can stand up in, but they are pricey.

 

[Tonyv__]

So I’m back to the misfires.. cyl 7 started acting up on me. Changed coil wire and plug with cyl 8. No change. So I pulled the fuel injectors and swapped 7 and 8. Currently idling the van for 15 mins or so to see if the code comes back in 8 instead of 7. Don’t have high hopes…. If no change, what’s the next step? Pull the valve cover and check the valves?

Oh yeah compression is good across the cylinders

 

[OR VietVet]

Check for vacuum leaks too. How old are the plugs?

 

[Tonyv__]

Check for vacuum leaks too. How old are the plugs?

January of this year and only 5,000 miles. I did plugs and wires.. follow up also the misfire did not change cylinders even after fuel injector swap.

how do I check for vacuum leak

 

[OR VietVet]

I check for vacuum leaks with my ears and I like to use a mechanic's stethoscope and take the probe out of the end of the hose and use the hose to search with. Another way is to use water in a spray bottle and spray near areas where there could be a vacuum leak and listen for the idle pitch to change.

 

[Tonyv__]

I check for vacuum leaks with my ears and I like to use a mechanic's stethoscope and take the probe out of the end of the hose and use the hose to search with. Another way is to use water in a spray bottle and spray near areas where there could be a vacuum leak and listen for the idle pitch to change.

I just YouTubed something briefly. Should I check for leaks around the intake?

 

[OR VietVet]

Intake is where to start for sure. Any vacuum hoses in the area.