95 5.7 Problems

[SunlitComet]

if your the rest of the ignition is stock switch back to the ac delco plugs and make sure your cap and rotor are correct. A lot of stuff slips by OBDI systems. They were not really designed to identify misfires or their direct cause.

 

[TORONTO 95 GT]

Had the same problem that returned after the standard tune up with non delco parts. Replaced all with Delco parts, misfire gone. Also never had the CEL with the misfire and when the TPS went it tripped my CEL randomly but the thing would feel like the trans was slipping when it was on.

Good luck

 

[96Tahoe4x4]

Timing off, pulsating excelaration....

I read through all of these threads. What I didn't see any mention of was the cap and rotor. They have a history of corroding and gumming up. This causes all of the mechanical failures that were mentioned.

I hope that helps.

FYI...These are GREAT trucks!

I am two days away from installing (front to rear) the High Performance polyurethane (red) bushing kit on mine!

 

[kelly1]

I agree on running stock ac delco plugs. I've had lots of tbi trucks and love them but they do lack the diagnostic capability of today's vehicle.

On the timing, make sure you disconnecting the brown with black stripe wire before checking or setting timing. Someone can correct me if I'm wrong but timing with the wire disconnected should be a zero I believe. I used to run all of mine at 2 degrees btdc. Got a little extra pep and no real drop in fuel mileage.

good luck.

 

[95BlackTahoe]

My 95 tahoe did the same thing...hard to start, had a miss occasionally...turned out the timing was 18* off to the negative. I timed it and the miss went away, also helped I'm sure with the new msd wires, coil, cap and rotor...lol. Either way, she runs great now.

Now I have to fix the fuel pump issue. It was a no start yesterday, and the pump wouldn't even prime. My friend reached in in the front of the drivers side rear wheel, and wiggled some wires, and it primed and ran...lol...another project...

Shawn

 

[TORONTO 95 GT]

I wonder if he ever got this thing running better?

 

[retorq]

Probably not, all 95s need to be lit on fire and pushed it off a cliff ...

 

[TORONTO 95 GT]

Hey, thats not fair!!!

I think my 95 runs pretty good for its age and milage all though I swear I could out run it in a 1/4 mile race. It takes forever to get up to speed. I am slowly fixing up things as I go. I have not been driving it since October but getting ready to drive it a bit this summer up north a few times.

 

[19992dr4x4]

I had a miss or sputter like feel on my on my 99 tahoe and replaced plugs,wires,cats,cleaned the EGR valve and no fix. So I replaced my fuel pump...no more miss or sputter.

 

[SunlitComet]

Probably not, all 95s need to be lit on fire and pushed it off a cliff ...

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