Is the manual and parts catalog availabile - Cars & Trucks

It is here

https://www.ebay.com/itm/313409718567

https://www.google.com/search?q=isuzu+4ja1+parts+catalog+pdf

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Contact local AutoZone or other reputable parts supply store and request definition of code p1399 and recieve info. on price and availabillity of failing part.This code from what you have described is very important to resolve.Hope this helps you.

i know a website that sells very cheap but very very good manuals online, without expiry i.e. for lifetime. www.reliable-store.com

http://777parts.net/volvo/EC25/m26.html

General advice:Relative
Manual transmission back dif 1,5-2l,front (gear box)3-3,5
Automatic:Over 4l.
Yet,u need to confirm with the dipstick (the one availabile or a rigid wire used as deepstick)
U may take note of what comes out before replacing.
Some transmission need to start the engine and run the trans then ceck level again.
I know is a general advice,but u must treat the cars as a innumerous marks/models and deal fine without factory specs.If not,u need owner manual,dealers visit,shop info,etc.
Cheers let others know if u done it.

Track the problem by reverse engineering.First manually connect the starter (u must know how to do it,u have to shortcircuit two points on the starter or inject 12 v in one ,or even pull by hand the trigger if availabile,again,u have to be familiar with).Then ceck fuses and relay.Ceck ignition barrel/immo state.

What brand - model - and year of car do you have?

We have no parts manuals here at fixya. Sorry. Also this is the wrong product category.

Without knowing what you are looking for and what vehicle, the best advice I can offer you is to try www.rockauto.com as they have a very extensive parts catalog. If you are asking for an exploded view of parts because you don't know what to call the part you want, you will need to get the factory service manual for your vehicle from www.diyrepairmanuals.com and look through that manual for what you need. The manuals they sell are not the generic manuals you get from the part store. These are actual factory manuals the dealers use to work on cars.

shop manual? wiring book? owner manual?

no one has parts catalog except dealer. Some body parts on ebay for $10