Jump to content

Going nuts here

Recommended Posts

Ok so I bought my ex husband's truck its a 97 gmc sierra 5.7 vortec rear wheel drive half ton. he claimed the fly wheel was cracked. Well I have done all the myself on getting this truck going except pulling transmission and putting back in. I've replace flywheel starter, the oil pan gasket, rear main seal, flushed the transmission and put new filter in it. New transmission mount. New carrier bearing. Now he had bought a new distributor cap and rotor. It was the aluminum on. I had issues getting it timed and staying that way. And I would remove the negative battery cable and turn head lights on to reset the timing advance thing. My truck doesn't have the wire you can disconnect. Ok so I ended swapping the the distributor and rotor for one off a parts truck then I am able to get timed. I also want to get this trunning good. Me and my brother use to work on vehicles before he passed so I've been really over the top. I have changed out map sensor that maf sensor new idle air control sensor new throttle position sensor 4 new o2 sensors new fuel pump and fuel filter new pcv valve thing. Ok so the truck now when you start it idles really high then bogs down like it's gonna die then the rpms jumps up again and continues to do this. I filled the take got 155 miles on a full tank so the  gas consumption is out of control my fiance says it's running rich also. I don't know what's wrong with my truck it's only throwing a code p1345 some say vacuum leak other say catalytic converter.... please help

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...

Important Information

By using this site, you agree to our Terms of Use.