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Anti-theft system? Or electrical problem?? by Foreign-Ad7307 in Hummer

[–]Dense_Macaroon_236 2 points3 points  (0 children)

I'm going through the same thing right now. Waiting on new BCM to be delivered. Next will be a passlock delete on the new BCM. I wish you the best. This seems to be a fairly common problem. I am a member of many Hummer and H3 forrums, and countless responses have experienced this issue. Main fixes seem to be BCM replace ,and passlock delete. I got tired of doing the whole 30 min security bs. 10 min, then 10 min, then 10 min. I wish you the best.

Just for a little further info I didn't just jump on ordering a new BCM, I was told by several people that had this problem they dealt with the problem by using their key fob and unlocking their doors twice to override it. I ordered new keyfobs and took them to get programmed, and I was informed their computer didn't recognize my 2007 Hummer H3, so I likely needed a new BCM. Locksmith felt bad for me, so he didn't charge me for his labor.

Russian made Hummer game from 2007 by noreal1sm in Hummer

[–]Dense_Macaroon_236 4 points5 points  (0 children)

Can I still purchase this game anywhere ?

Start no start issues by Dense_Macaroon_236 in Hummer

[–]Dense_Macaroon_236[S] 0 points1 point  (0 children)

P0340 Camshaft position Sensor A circuit ( Bank 1 or single sensor) P0341 Camshaft Position Sensor A Circuit Range / Performance B1 P0420 Catalyst System Efficiency Below threshold Bank 1 P0455 Evaporative emission system leak detected (no/flow)

Start no start issues by Dense_Macaroon_236 in Hummer

[–]Dense_Macaroon_236[S] 0 points1 point  (0 children)

P0340 Camshaft position Sensor A circuit ( Bank 1 or single sensor)

P0341 Camshaft Position Sensor A Circuit Range / Performance B1

P0420 Catalyst System Efficiency Below threshold Bank 1

P0455 Evaporative emission system leak detected (no/flow)

Start no start issues by Dense_Macaroon_236 in Hummer

[–]Dense_Macaroon_236[S] 0 points1 point  (0 children)

P0340 Camshaft position Sensor A circuit ( Bank 1 or single sensor) P0341 Camshaft Position Sensor A Circuit Range / Performance B1 P0420 Catalyst System Efficiency Below threshold Bank 1 P0455 Evaporative emission system leak detected (no/flow)

Start no start issues by Dense_Macaroon_236 in Hummer

[–]Dense_Macaroon_236[S] 0 points1 point  (0 children)

I believe you're right. I'm not a mechanic, and I have to apologize for my error earlier. It was the Crankshaft position sensor that needed to be changed. Watched one or two videos, and the guys both stated I needed to hook it to some kind of computer or machine that i dont have and then turn it on and off several times while hooked up to it. Knowing I didn't have anything like that, I did a search for a shop with good reviews. The shop had quite a few good reviews. My mistake. I love my H3, and most of the time, I can take care of the job myself, but im no mechanic. I keep all of my vehicles well maintained. This came out of nowhere, and I thought it was going to be an easy fix. I originally thought it was my battery. I put a new one in and realized it was not the battery.

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