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    How to solve an exhuast backfire?

    Thanks to all for the suggestions, Unfortunately, I was at work the rest of the day and unable to tinker with the truck. Crazy4offroad, I will pick up a vacuum gauge first thing in the morning and run a test. I'l post my results here as soon as it is done. Also, thanks for explaining the...
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    How to solve an exhuast backfire?

    So here is the latest on the truck: Went out to see what I could do in terms of timing, but before I did I reinstalled the air cleaner. I had the air cleaner removed during the process of the tune up, and checking for a vacuum leaks. Upon reinstalling it and the vacuum lines that go to it, I...
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    How to solve an exhuast backfire?

    350 runner, I bought the truck off a gentleman who drove it probably twice a month. When I got it had a little over a quarter tank of whatever gas he ran. After buying it I took it to gas station and filled it up with about 35 dollars of premium 93 octane. 350runner and 87scotty, I didn't...
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    How to solve an exhuast backfire?

    350runner, I tested the plug wires, with the readings ranging between 1.5-2.1 ohms. I compared this to an old set of wires which had readings ranging from 6-9 ohms. This leads me to believe the plug wires are in good shape, but I could be wrong. Any input on that would be helpful. 87scotty...
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    Engines shot

    You might try running a heavier weight of oil as well. A friend of mine had an old jeep cherokee with a similar low compression issue due to the engine wearing out. He ran 15-40w oil and it ran a little better, lasting about 10,000 more miles
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    How to solve an exhuast backfire?

    350runner, I forgot to mention in my original post that the spark plug wires are new as well. My apologies for that. However, I suppose it is possible for them to be bad out of the box. I do have a multimeter, but I am not sure it reads ohms. I will check them anyways and report back
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    How to solve an exhuast backfire?

    Thanks to all for input, This morning I retraced my steps. Here are my results: Firing order is correct New plugs are in good shape, gapped correctly Both dist cap and rotor are installed correctly with no visible cracks etc. I sprayed almost an entire can of carb cleaner all over the engine...
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    How to solve an exhuast backfire?

    350runner, I sprayed carb cleaner around all the vacuum lines, carburetor, and intake manifold without any change in engine rpm. Admittedly, It was almost impossible to check for leaks on the bottom of the manifold, but I sprayed the hell out of it with no change. As far as having the carb...
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    How to solve an exhuast backfire?

    Smoothandlow, I have not checked the firing order for the engine yet, but given how it idles I am pretty sure it is correct. When replacing the plugs I did them one at a time to prevent myself from messing up the firing order. I will double check it first thing tomorrow though. Thanks for the reply
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    How to solve an exhuast backfire?

    Hi all This is my first post on the forums, but I have been a longtime unregistered lurker. Recently, I acquired a 1983 c10 with the 4.1 six cylinder. The engine would appear to be completely stock, except for perhaps a lack of vacuum lines. The problem: The trucks is having is a small...
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