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No, a 4.3 liter V6 is not a compatible replacement for the 3.3 liter V6 in a 2003 Nissan Xterra. The Xterra is only built to accommodate engines up to a maximum of 3.6 liters. It is important to replace an engine with one that is compatible with the vehicle and meets its specifications. A reputable mechanic could advise on the best replacement engine options for your Xterra.
These are books containing info on repair, service, troubleshooting, parts info, assembling dissemble, removal, error/fault codes, wiring diagrams and everything on any vehicles cars, atv, trucks. forklifts, boats, excavators etc
These are books containing info on repair, service, troubleshooting, parts info, assembling dissemble, removal, error/fault codes, wiring diagrams and everything on any vehicles cars, atv, trucks. forklifts, boats, excavators etc
More than likely it's your spark plugs, plug wires or distributor cap. I would just replace them all due to the age of the vehicle and this should fix your problem. Cheap and easy fix. Should only take 30 min or less but the back plug can be a pain so make sure you use a spark plug socket.
Have the computer scanned for codes. Once you know the codes ou will have a much better idea of what the problem is.
Three option for this
1 buy a code reader for about $50 and pull cos yourself
2 call you local parts store to see if the can pull codes for you.
3. Bring the vehicle to your local garage or dealer and have them do a diag. There is usua
Ly a set fee for this.
Once you have the code or codes post them and I'll see what I can do to help.
Let me know if you have any questions and I'll do my best to answer them. Thank you for using FixYa.com!
It's the valley of the engine underneath the intake manifold. It's about an $800 job because the top of the engine has to come off. However, unless you have a supercharged xterra it shouldn't effect performance. Also, the knock sensor will not trip the check engine light, as it does not indicate a primary problem, so if your light is on you should have another code that should be fixed first.
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