Question about 1997 Chevrolet Blazer
Check timing , re-install distributor , check timing belt might jumped a tooth .
Posted on Jan 23, 2013
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Posted on Jan 02, 2017
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
Check the ECM for Codes to help you find out what's causing the problem. Here is a simple and easy way to check.
On board diagnostic (OBD) was designed on vehicles equipped with electronic fuel injection so you can generally retrieve the codes yourself. No need buying a scanner or running to any parts stores to check the Check Engine. This system is called obd1 and applies to most vehicles made before 1995 for domestics and 1993 on imports. In this article, I will discuss the methods used by domestic vehicle manufacturers on how to check the engine lights in their cars and Trucks.
For GM domestic vehicles made before 1995, the diagnostic connector is located under the dash panel by the driver side. To get the check Engine codes to flash in your dash panel, use a jumper wire or a paper clip and connect terminals A and B of the diagnostic connector. Turn your ignition key on with engine off and the codes should start to blink. All codes should start with code 12 which is one long flash followed by 2 short flashes. This code 12 means the diagnostic system is normal and will repeat itself continuously if there are no trouble codes. Otherwise, code 12 will flash 3 times before flashing the fault codes.
Counting the codes being flashed is easiest way to trouble shot problems in domestic vehicles and most of the codes can be erased or cleared by disconnecting the battery negative terminal for 1 minute and reconnect. Just make sure to check your service manual in case you have electronic equipment such as radio or clock that needs reprogramming in which battery disconnection is not recommended. Finally after performing repairs on the culprit code, always go for a road test to confirm if the problem is fixed.
Here is a link with the GM codes. http://chevythunder.com/199295_lt1_trouble_codes.htm
Good luck and hope this helps
Posted on May 02, 2009
if it needs a fuel pump it is not that bad of a job get the rear up high ramps are ok remove the spare tire disconect the filler neak and the small over flow hose at the tank now remove the rear tank strap the tank will drop some in the rear now if it is full of gas you may want to syphon some fuel out of the tank this can now be done with the filler neak disconected after removing some fuel you can reach up on top of the tank and disconect the 2 electral plugs also you can take the 3 fuel lines off now loosen the front tank strap DO NOT REMOVE THE STRAP OR THE NUT HOLDING THE TANK COMPLETLEY THE TANK DOES NOT HAVE TO BE REMOVED let it rest on the front strap now yuo can remove the pump from the tank remove the flange nut and lift out the pump asy install in revurse
Posted on Dec 27, 2009
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