Question about Cars & Trucks
Run fault codes and look for problems in the TCM (transmission control module)
Posted on Oct 13, 2013
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Posted on Jan 02, 2017
SOURCE: I have a 1995 Chevy
i have a 95 k2500 350 just put in a new tranny and less than 90days later there is little to no pressure. Thinking it is a bad pump but could be the ecu thing as well since the previous tranny went out the same way. If you know where to locate it any help would be great! c = 2wd k = 4wd
Posted on Sep 29, 2008
Your Trans should be the 4L60. If your speedometer quits working and the truck won't shift out of 1st gear, the "Speed Sensor" is probably bad or the wiring is bad where it plugs into the sensor. The sensor will be towards the back of the trans or on the tail shaft. An easy way to test if the wiring is bad at the plug is to pull on the wire 3" or 4" from the plug and watch closely to see if it stretches. If there is any stretch the wire inside the plastic sheath is broken.
Posted on Jan 16, 2009
It sounds as though your Crankshaft Position Sensor has gone out. They are pretty easy to change. You will have to remove your harmonic balancer/crank pully to get to it, as it is on the inside of the pully. Also, if you have a 3.1 engine, you have a second Crankshaft Position Sensor on the side of the engine closest to your firewall. (it is below the number 1 and 3 spark plug). It could be that one or the one behind the balancer. I would suggest replacing both of them at the same time. As for removeing the harmonic balancer, you should use a puller to do so. When reinstalling it, do not use a hammer or anything to tap it back on, as this can damage the balance and also the crankshaft. You should use a harmonic balancer installer to put it back on. Both the puller and installer can be borrowed from Autozone (with a deposit that will be returned once you return the tools).
Posted on Jul 22, 2009
My truck does the same. Has anybody solved this yet? I just ordered OBD2 connector to connect my laptop to truck to monitor. Hope I can find the problem
Posted on Dec 22, 2009
Check the electrical connector above the modulator. If the connections are loose or the connector is damaged... similar things happened to mine.
Posted on Jan 06, 2010
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