Search results

Thx Lester, the Tahoe had an aftermarket remote start installed by some previous owner. No start issues since that event.

For the last couple of years my 2000OBS would occasionally crank, fire, die. Let it sit for a while and it would start. A couple of days ago it did it again and happened to notice that with the ignition switch "On", the security light would flash. Looked in the manual and it said that Passlock...

Are the shocks in good shape?

Forgot to update. Found the ground wire for the fuel pump which is located forward of the left rear tire and inboard on the frame, was severely corroded. Removed, cleaned terminal and frame with steel brush a month and a half ago, no problems since.

Replaced the filter at the same time as the pump. Also, no codes. I checked fuel pressure yesterday, 60psi. I was thinking it might be the fuel pressure regulator, but not sure that would cause an intermittent problem. Think I will clean the IAC this weekend. A couple of years ago i replaced the...

Did replace the connector, it was different from the original. The pump does run when the key is turned for about 2sec. Also, no trouble codes have popped. Thx

2000 Z71 OBS, 5.7L. About six months ago I installed a new OEM fuel pump. About two months ago I got in the truck, engine cold, turned the key, engine would try to start, then die. Tried this multiple times, finally it started and have not had any start issues until yesterday. Drove to the...

Old thread, but great info. Had the clunk, thought the rear end was going out. Pulled the driveshaft and lubed the crap out of it, clunk all gone! Love this forum

Thanks, I'm a little late getting back into this issue, been very busy. Pressure is about 58psi. Assuming the Delphi pump I installed about 9 months ago is still good, it seems that if the problem was in fuel pressure regulator, each start would take the same amount of extended time, but it...

Thanks I'll try that test. Is there a specific pressure I should see on the gage?

I've got several test gages in my aircraft mx shop, so should be able to rig something up.And yes it is the OBS with the 5.7l Thx, Steve

I have a 5.7l, and according to my book, the fuel pressure regulator is under the upper intake manifold, so I will have to pull it. Does this sound right? Thx

Thx Samotahoe. Pump was a complete assembly including qty sender. Even if the check valve is faulty, shouldn't I hear the pump run when I turn the ignition switch on? Thx

Surely someone has a thought on this issue

I have a 2000 Z71, 5.7. About 4 months ago I had to replace the fuel pump. Worked great until a month ago, now when I turn the ignition on, I can't hear the pump run and the first start of the day takes a little longer than usual. All starts after that are normal, pump still doesn't come on, but...

I have a 2000 Tahoe Z71 5.7L OBS with a P0420 code. Scanner says it is a catalyst issue. I have two catalysts, one with an O2 sensor on the engine side of the catalyst, the other with an O2 sensor on the muffler side of the other catalyst. Any thoughts on which catalyst, or could it be one of...

I have a 2000 Z71 OBS with rear AC. The rear AC blows cold, but the front doesnt, barely cool. So the problem would appear to be some component particular to the front AC system. Air blows well out of the dash outlets, blower motor works on each setting from hi to low. All fuses good, compressor...

Realize this is an old post, but most likely your intake manifold, which these engines are notorious for. Just bought a FelPro MS98000T gasket set an changed my lower, upper and throttle body gaskets. Lot of work, but worth the effort. No current leaks

Here is the info for my 2000 OBS: Disconnect the door jamb switch. Disconnect the wiring harness (6) connectors inside the lock-pillar, as necessary, by completing the following steps: 2.1. Remove the lock-pillar trim panel. 2.2. Disconnect the wiring harness connectors. 2.3...

Just finished my intake manifold project yesterday, all is well. Used all of the gaskets in the FelPro set, except for two small o-rings, which I couldnt figure out where they go. They werent the fuel lines going to the upper induction manifold, too small. Time consuming but very doable.