Recent content by dfc739

Have you inspected your exhaust manifold? Your description reminds me of mine when it was cracked.

Do most of the lights on the dash light up as it says unknown driver? If yes, then it sounds identical to my problem when I had a data com wire ground out. In my case it was the DVD player and I removed it from the splice pack under the rear passenger seat to fix the issue. But I've seen many...

I would troubleshoot by swapping coils and swapping spark plugs. If the misfire doesn't change to a different cylinder then it has to be a bad fuel injector, burned valve, or something more sinister like broken valve spring/cam follower or electrical (such as the coil or injector not being...

Thanks. PM sent.

Any update on this? I'll be in Iowa City on business tomorrow. I have an extra throttle body (from my 2004 engine) and Torque so if you want help just say the word.

You can buy the clutch itself, but not from any normal supplier. If memory serves correctly there is a supplier on eBay that will sell only the clutch. But I don't have any firsthand experience because I sanded down the shim that was already in mine. Mine has been working great all summer...

I just put a Hayden 3200 in mine when I changed the water pump. I got it off Amazon for $129. I read about some previous problems with the Dorman unit but the Hayden has been reliable.

You didn't mention it, but did the dealer clean the throttle body? Since the 4.2 engine doesn't have a proper PCV, it's common to get buildup on the throttle body and it needs to be cleaned. I try to do mine at least annually. You have to clean the back side also. On a side note, how much...

First I would check the fuses. Then I would crawl back under there and check to make sure you didn't bump any electrical connectors or if any accidentally came unplugged. Also check your grounds to make sure none are loose/corroded. If those don't correct the problem: what else can you tell...

FWIW, here is a screenshot of Torque Pro on my phone. I have it set up to monitor the pre-cat O2 sensor above and post-cat O2 sensor below. When it's cold the two graphs are very similar but when warmed up the bottom one is basically a flat line. My phone likes to display the volume when...

My a/c decided to stop working this weekend so I got under the hood to do some routine and not-so-routine maintenance. I fixed the a/c: add me to the list that had to reduce the shim on the compressor clutch. My airgap was 0.036" and I sanded down the shim until it was 0.025" (completely...

I think it's per return, so three states jointly = three returns and three states filed separately= six returns. This year I escaped Turbo Tax. I used them for the last six or seven years and they got to the point where they were charging $39/state (I work in multiple states) so it became a...

Is that the under dash data communication splice pack? The splice pack under the rear seat has an identical comb that connects all the communication module wires.

What do you mean it would crank but not turn over? Check to make sure they are AC Delco 41-103. Our engines are finnicky and ONLY like these. Do not gap them: they come pregapped. If one looks different I would return it rather than try to make it work. Whoa, what? You checked fuel...

How does it run after it starts? Have you connected a code reader? Fuel trims? Ok, I found this quote in your other thread: "it took 20-30 turns of the key to start it would crank every time but just wouldn't turn over then i got out the truck pulled the abs fuse for 10to 20 seconds put it...