Search found 177 matches

by protraxrptr17
Wed Jun 01, 2011 3:14 pm
Forum: GM Trucks
Topic: 1998 Chev K2500 - 7.4L Miss Under Load FIXED!!!!
Replies: 50
Views: 7340

Re: 1998 Chev K2500 - 7.4L Miss Under Load FIXED!!!!

The screenshot you posted is much different than mine. I would be more concerned with number 6 than 5.
by protraxrptr17
Wed Jun 01, 2011 3:08 pm
Forum: GM Trucks
Topic: 1998 Chev K2500 - 7.4L Miss Under Load FIXED!!!!
Replies: 50
Views: 7340

Re: 1998 Chev K2500 - 7.4L Miss Under Load FIXED!!!!

I can say with absolute confidence that there was no ground issue before or after lifter replacement. I dont see how a bad ground could only affect one cylinder in a distributor ignition. Not saying you are wrong, just dont see how.
by protraxrptr17
Fri May 27, 2011 7:05 am
Forum: GM Trucks
Topic: 1998 Chev K2500 - 7.4L Miss Under Load FIXED!!!!
Replies: 50
Views: 7340

Re: 1998 Chev K2500 - 7.4L Miss Under Load FIXED!!!!

No I didn't. It ran good so I shipped it. Never been so glad to see a vehicle gone from my shop. Please elaborate. I want to learn as much as I can about these secondary patterns.
by protraxrptr17
Fri May 20, 2011 6:25 am
Forum: MEMBER REPAIR TIPS
Topic: Excessive Exhaust Backpressure Testing
Replies: 9
Views: 1679

Re: Excessive Exhaust Backpressure Testing

I love my gauge. It can screw into an o2 port or it has an air hammer attachment to punch a hole in the pipe and some self tapping screws.
by protraxrptr17
Wed May 18, 2011 9:06 am
Forum: GM Trucks
Topic: 1995 K2500 Chev Trk - 5.7L In & Out Of Closed Loop - FIXED!
Replies: 53
Views: 7774

Re: 1995 K2500 Chev Trk - 5.7L In & Out Of Closed Loop

Yes. I'm not familiar with how the simulator works, but it might let you vary the voltage far enough to overcome a circuit problem. Just a guess.
by protraxrptr17
Wed May 18, 2011 5:19 am
Forum: GM Trucks
Topic: 1995 K2500 Chev Trk - 5.7L In & Out Of Closed Loop - FIXED!
Replies: 53
Views: 7774

Re: 1995 K2500 Chev Trk - 5.7L In & Out Of Closed Loop

Is the o2 readings you posted what you are seeing at the scan tool? I would scope the sensors directly at the sensor plug and at the pcm to see if there is a difference between the two or what is displayed on the scanner. You may have already done this and I missed it.
by protraxrptr17
Tue May 17, 2011 2:28 pm
Forum: Dodge Trucks / Jeep
Topic: 2006 Dodge Ram - AC Short Cycling Poor Cooling
Replies: 17
Views: 3161

Re: 2006 Dodge Ram - AC Short Cycling Poor Cooling

Is this a diesel? I had this same problem on a diesel before and it was the fan clutch. It is electrically actuated. The air would work fine for just a minute the the high side would peg and the compressor would start cycling rapidly. You can monitor fan rpm and desired rpm on your scan tool to chec...
by protraxrptr17
Tue May 10, 2011 1:26 pm
Forum: GM Trucks
Topic: 1998 Chev K2500 - 7.4L Miss Under Load FIXED!!!!
Replies: 43
Views: 5414

Re: 1998 Chev K2500 - 7.4L Miss Under Load

Fixed!!!!!! Praise God!!!
by protraxrptr17
Tue May 10, 2011 1:26 pm
Forum: GM Trucks
Topic: 1998 Chev K2500 - 7.4L Miss Under Load FIXED!!!!
Replies: 50
Views: 7340

Re: 1998 Chev K2500 - 7.4L Miss Under Load

Fixed!!!!!! Praise God!!!
by protraxrptr17
Sat May 07, 2011 4:46 am
Forum: GM Trucks
Topic: 1998 Chev K2500 - 7.4L Miss Under Load FIXED!!!!
Replies: 43
Views: 5414

Re: 1998 Chev K2500 - 7.4L Miss Under Load

Exact same symptoms as before the valve job. No better,no worse. We will see. I'm doing the job right now. These rockers are not like the old style. These have shoulder bolts. No adjustment. It's all done at the lifter.
by protraxrptr17
Sat May 07, 2011 4:46 am
Forum: GM Trucks
Topic: 1998 Chev K2500 - 7.4L Miss Under Load FIXED!!!!
Replies: 50
Views: 7340

Re: 1998 Chev K2500 - 7.4L Miss Under Load

Exact same symptoms as before the valve job. No better,no worse. We will see. I'm doing the job right now. These rockers are not like the old style. These have shoulder bolts. No adjustment. It's all done at the lifter.
by protraxrptr17
Fri May 06, 2011 1:25 pm
Forum: GM Cars
Topic: 2001 Cad Deville - Engine Noise
Replies: 10
Views: 1599

Re: 2001 Cad Deville - Engine Noise

I did the seafoam thing but I let it suck straight out of the bottle thru a vacuum hose. It smoked something fierce, so it had to have cleaned something out of somewhere. I told him to go try it. He hasnt picked the car up yet, so I cant label this one fixed just yet.
by protraxrptr17
Fri May 06, 2011 1:18 pm
Forum: GM Trucks
Topic: 1998 Chev K2500 - 7.4L Miss Under Load FIXED!!!!
Replies: 43
Views: 5414

Re: 1998 Chev K2500 - 7.4L Miss Under Load

Its in my first post.
by protraxrptr17
Fri May 06, 2011 1:18 pm
Forum: GM Trucks
Topic: 1998 Chev K2500 - 7.4L Miss Under Load FIXED!!!!
Replies: 50
Views: 7340

Re: 1998 Chev K2500 - 7.4L Miss Under Load

Its in my first post.
by protraxrptr17
Fri May 06, 2011 10:49 am
Forum: GM Trucks
Topic: 1998 Chev K2500 - 7.4L Miss Under Load FIXED!!!!
Replies: 43
Views: 5414

Re: 1998 Chev K2500 - 7.4L Miss Under Load

If you look at the scope pattern I posted you can see the problem cylinders as 8, 6, and 2. Of course its easy to see after the fact. :D
by protraxrptr17
Fri May 06, 2011 10:49 am
Forum: GM Trucks
Topic: 1998 Chev K2500 - 7.4L Miss Under Load FIXED!!!!
Replies: 50
Views: 7340

Re: 1998 Chev K2500 - 7.4L Miss Under Load

If you look at the scope pattern I posted you can see the problem cylinders as 8, 6, and 2. Of course its easy to see after the fact. :D
by protraxrptr17
Fri May 06, 2011 10:45 am
Forum: GM Trucks
Topic: 1998 Chev K2500 - 7.4L Miss Under Load FIXED!!!!
Replies: 43
Views: 5414

Re: 1998 Chev K2500 - 7.4L Miss Under Load

Already had the heads done. It only leaks when the rocker arms are tightened down. Number 6 only had 60 LBs compression. Loosen the rocker arms and it only had 10% leakage. Tight it would go to 80. Only thing that it can be.
by protraxrptr17
Fri May 06, 2011 10:45 am
Forum: GM Trucks
Topic: 1998 Chev K2500 - 7.4L Miss Under Load FIXED!!!!
Replies: 50
Views: 7340

Re: 1998 Chev K2500 - 7.4L Miss Under Load

Already had the heads done. It only leaks when the rocker arms are tightened down. Number 6 only had 60 LBs compression. Loosen the rocker arms and it only had 10% leakage. Tight it would go to 80. Only thing that it can be.

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