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Problems...

BluewaterFX

BluewaterFX

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So I've run into a couple issues in the past couple days.

I drove my k5 over to some property where I hunt. Haven't had any mechanical issues with it since I bought it up until this point. Drove to the back of the field, put out some corn, hopped back in the truck...wouldn't turn over. It sounded like it wasn't getting fuel (and the battery wasn't charged). It has a new battery so at this point, my suspicions were confirmed that the alternator was bad. I had a friend come jump me off and the truck sputtered and spit the whole way home...fuel filter. So, went to the parts store, bought a new high output alternator, fuel filter and some other general maintenance stuff. Came home, pulled the transmission pan, new trans filter, new oil, put in the alternator and the fuel filter. Truck started up and drove the best its driven since Ive gotten it, so I was pretty excited to say the least.

Went and put 40 bucks worth of gas in it and made it 50 yards are so and it cut off, sputtering and spitting and couldn't get it cranked up. Sounded like it wasn't getting fuel. So, walked back to the gas station, poured some fuel in the carb and it fired up after some babying and ran like a dream, drove it 15 miles or so to a buddies shop to have him help me try to diagnose the problem, after looking it over, I got in and went to crank it up...nothing.

Gave it 20 or 30 minutes to "cool off" tried it again...still, it'd turn over but just wouldn't fire up. Pulled a wire and checked to see if it was getting fire...it wasn't. So at this point, I'd collected some parts and figured it was time to do some stuff. New edelbrock intake, holley carb and rebuilt the distributor. So I got everything finished up last night and went to turn it over...nothing. Pulled a wire, still not getting any fire at all.

At this point, Im about at the end of my mechanical knowledge (and know nothing about this ESC system) Im a body-man by trade so what Ive done is just what Ive picked up as "basic knowledge" from restoring cars.

Could it be the ESC module itself gone bad? I'd rather not have it at all and handle the knock myself. If the controller itself is bad, would it cause the engine to not get fire at all? Would the wire loop method here bypass this? With the distributor completely rebuilt, could there still be another issue in it? Would buying a new distributor before removing/by-passing the ESC be a smarter choice?

I appreciate it in advance and any ideas or suggestions would be great.
 
Ever consider bad fuel pump as one of the problems? Sounds like the same symptoms i was having with a bad pump. Of course that was an electric pump...not sure what you are running, probably mechanical?
 
year, engine, mods for the engine, etc?

It sounds like you're going in the right direction but as far as TBI stuff, I know nothing.
 
wage92 said:
Ever consider bad fuel pump as one of the problems? Sounds like the same symptoms i was having with a bad pump. Of course that was an electric pump...not sure what you are running, probably mechanical?
Click to expand...

Thought about that but it seems to be getting fuel, just no spark.



K85 Octane said:
year, engine, mods for the engine, etc?

It sounds like you're going in the right direction but as far as TBI stuff, I know nothing.
Click to expand...
82, 305/700r4, completely stock (except for exhaust) until the edelbrock high rise and holley 650 that went on after it quit on me. Ive decided to ditch the ESC all together, going back to a basic HEI, I'll handle the timing myself. We'll see how that goes this weekend.

Appreciate the input guys, and since threads are worthless without pics (right? :thumb:) Here she is (sneak peak) after getting a half-ass flat black paintjob, phantom grill and a set of new wheels and nitto mud grapplers. Might be time to start a build thread huh. :popcorn: Can't get the lift on it fast enough but wanted to wait until the engine issues were worked out.

A475Z.jpg
 
Those are some big ass rims dawg! :)

I didn't think you had a TBI truck, your avatar said that. In '82 you had the regular carb but a knock sensor? Or did you have the computer carb and computer thing behind the glove box?

IMO, I'd ditch all that stuff. I did. If you have smog, keep all the little wires and pieces under the hood. Switch out to a new HEI and older "non-computer" carb. Dummy wire everything and run it. No more guessing games
 
K85 Octane said:
Those are some big ass rims dawg! :)

I didn't think you had a TBI truck, your avatar said that. In '82 you had the regular carb but a knock sensor? Or did you have the computer carb and computer thing behind the glove box?

IMO, I'd ditch all that stuff. I did. If you have smog, keep all the little wires and pieces under the hood. Switch out to a new HEI and older "non-computer" carb. Dummy wire everything and run it. No more guessing games
Click to expand...

Ugh yeah, Im not a huge fan of them, but I got the 20" wheels and 33" mud grapplers (and have another set of 35" mud grapplers for the 20s) for a few hundred bucks.

The truck is an ESC..electronic spark control, the stupid computer module behind the glove box, then the 4 wire connector going to the distributor. Getting rid of all that, hate having all the electronic junk anyways.
 
Could be an Ignition Module... If you're definitely not getting spark, I would look there. Same thing happened on my truck.
 
When you are pulling a plug, you are grounding it right? Also, be careful not to ignite any fuel spray coming from the open plug hole. It sucks, don't ask, but that was brake cleaner.:doah:

You have a lot of vacuum lines you can get rid of. If you don't have smog, only thing you really need is the gas tank vent line going to the carbon canister. Also, the PCV valve to the carb. I'd start by getting a new distributor and an older Q-jet. Also, hacking away at all the computer controlled stuff. OH, and make sure you're getting 12.xx volts from the coil wire. You might have a short or something causing low voltage or dirty voltage.
 
I might of started off in a better position had it been a TBI, know my way around a TBI (and TPI) from an unfortunate 3rd gen camaro stage I went through.
Good news is, new distributor is here...I'll report back this evening (hopefully with a running truck).
 
That was it, gotta love getting rid of all that electronic crap. Had it 180 out initially, turned the motor over, dropped right back in and fired right up.

Gonna head back over tomorrow, adjust the timing, and tidy up some of the thousands of vacuum hoses. And finish taking the rest of the A/C junk out and I'll have'er back home.
 
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