Question about 2000 Chevrolet Blazer
Sometimes when start my truck lights on like supose to but sometimes they won't come on for days sometimes a week
Need more information, but try to engage with engine at idle and transmission in nuetral and then slowly put into gear. Some vehicles will only engage 4wd system in D for Drive not the D with the circle around it for Over Drive, due to speed restrictions on the system. 4H is used for inclement weather and snow for highway use or cruising off road. 4L should only be used OFF road not on pavement and for slow speeds only. If that does not work put in drive and slowly move vehicle forward with 4wd switch engaged shift to nuetral while coasting and then put into a forward gear NOT reverse and it should engage, make sure you do not have locking hubs as well, I don't know many vehicles that have locking hubs as of late, but I could be mistaken. Hope this helps. Other post have also stated that the 4wd switch could be faulty, and can easily burn out.
Posted on Jan 11, 2009
Just had same problem. After ruling out easy checks like parking brake switch, and park shift selector switch, It was a burned out resistor that is located inside the front left fender. Take off the front tire, remove the inner fender liner, the ceramic resistor is towards the front. It crumbled when I removed it, Could only get replacement from dealer for about $65.
Posted on Jan 30, 2009
o2 sensor will not stall your truck,ecm will bypass o2 code and run on open loop,or ecm default setting,dont search further ! your problem is all related to remote starter and bypass,youll have to fix wiring properly to original state,or your problem will probably get worse!
Posted on Mar 20, 2009
our 91 had that problem...
could be your fuel pump is getting ready to go out. If your handy check the fuel pressure after its warmed up. It should be above 30psi, if not replace your fuel pump. before you do you that though I would have it dynoed. better to have it dynoed first before replacing the fuel pump. if the dyno results come back as no problem I would guess fuel pump..
Posted on Nov 27, 2009
Check for spark by removing one of the plug wires from a spark plug and installing one of your old plugs in the removed wire (leave the other end of the wire attached to the cap). Rest the exposed plug on an under-hood surface that will provide a sufficient ground and have some one turn over the engine. You should se a strong blue spark. We have seen some intermittent coil problems on your generation Blazer that would explain a lack of spark. Good luck!
Posted on Jan 19, 2010
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