Engine VERY recently replaced with a Cannibal V8.

When starting in the morning, there is a loud whining noise coming from under the hood lately. Can hear it for about 3 to 5 minutes, then goes away, I guess when something warms up. Haven't had time to troubleshoot it.

Tonight, started for the first time, and the whining noise once again lasted for about 3 to 5 minutes. Didn't let the truck sit and warm up as I usually do.

When driving off, it felt like something was restraining the engine. When I pulled out onto the highway, I had to hit the gas a little hard to get into traffic.

Truck seemed to hesitate then all of the sudden it freed back up to normal. Exactly at that time the Service Engine soon light came on.

When I got back home I checked the codes at got the P0134 and P0305 codes. Erased the codes and the Service Engine Soon light went off. Turned off and restarted, still no codes.

Truck does seem to ride a little ruff.

I am thinking dirty MAF or O2 sensors?

Any ideas?

 

Cranked up the truck today after clearing the codes. Found the part causing the suspect whining noise. It is coming from a black round looking canister thingy (Technical term for all you n00bs) that I think is tied to the secondary air some how. I guess that is going to be replaced!

Anyway, after driving some, Service Engine soon light came back on.

Now I have P0132, P0171, and P1171.

Is it possible I had multiple O2 sensors crap out at the same time, or do you think I have a MAF gone mad/bad?

 

Secondary air pump. Check the filter element has not been sucked in the pump. Also look at the three mounting points, these are rubber vibration isolators, could be broken. Final cause is bearings are going bad on the pump.

 

Thanks! Saw those suggestions in another post while researching.

The air pump couldn't be causing all these codes, could it?

Still thinking MAF

 

What do you guys think, MAF or O2 sensors first?

 

Just went to order a MAF and found out they are over $200!!!!

Can some one tell me if I am on the right track with the MAF or should I go after O2 sensors first!

 

So, am I at a either or situation here? No responses???

 

IDK how many miles are on the O2's, but for my time and $$$ for under $200 for 4 NTK O2 sensors I'd replace them. At least you are not throwing good money after bad. O2's are just routine maintenance.


Make that under $150 for 4 ....

 

Are these direct plug in, or do they need to be modified at the connectors? Are they just as good, if not better than the Bosch?

 

The whiring noise is 100% normal.
the code could be because one of the mounting points came loose from the Sec Air hoses. Same thing happened to me.
Before ordering MAF and o2 sensors have you spoken to David at The Shop? You may not need these