Sudden loss of power with 93 nissan pickup.

[Anthony]

Well its been at the dealer for 2 days ,and they cant find anything wrong.
The tech was not there ,but I went by after work to test drive ,and see if anything changed. Still the same thing.
GREAT!

He told me on the phone that compression was 125,130, 130, 140.
I think he said factory spec was 140psi.

I also asked if he checked fuel pressure ,and he did not.
Why would I have to suggest that??
Im going to drive it with the tech on Saturday.

I guess they will try again tomorrow.

 

[Towncivilian]

The minimum compression for a KA24DE is 142; standard 192. Difference between cylinders 14 max. Found on EM-85 of the 1994 Hardbody FSM.

 

[Anthony]

Thanks Town!
This is actually the single cam KA24E ,but the specs are probably close.

I would not think my compression numbers would be the problem since this seemed to happen over night.

Truck has always run amazingly well and quite spirited for what it is.

 

[Towncivilian]

Are you sure you didn't accidentally reverse the fuel filter's orientation? Have you tried running some fuel system cleaner? Just some random guesses

 

[Anthony]

Def sure on the fuel filter.
I should not have done this ,but I did pour Seafoam in the gas tank a day before I dropped it off. I was not sure when I was going to be able to take it when I added the Seafoam

When I drove it tonight it seemed a tad better but def still not right.

If they dont have a solution by Saturday ,Im just going to take it and drive it as is.

I do plan on having the Mech at my job do a Fuel injection service on it. I think he uses BG products.