Hi all, I was driving my '87 L98 w/113k mls.a while back and all of a sudden it began to stumble and snap and pop and had no power at all. Luckily I only had about 1/2 mile to go and managed to limp home. it would almost idle but was running super ruff and became worse as I was trying to check connections and fuel pressure and the like and like a dumb a$$, I ran it out of gas. It read 1/4 tank when I started. Luckily the fuel pump didn't crap out. I came on here and did a little research and decided it was the Ignition module. So i disconnected the battery and when I cracked the distributer open and got to the module it was all cracked and brittle and the lithium grease was non-existent, I guess from age so I replaced it and the coil while I was in it. I put 5 gallons of gas in it reconnected the battery and fired it up, spit a few times than smoothed out and ran great. When I turned the key though the dash went haywire for a second and I noticed the gas gage set on almost half. This can't be right, I only put 5 gallons in so I figured the float must be stuck on the sender and it would become loose on the way to the gas station. It didn't and actually rose to full before I reach the fuel depot. I have run two tanks of gas through it since and it still reads full. Have to watch the trip Odo real close. Could I have messed it up when connecting the battery? Has any one else here had problems like this and if so how did you remedy it. Should i pull the sending unit and pump out or is it a stinking digidash problem? What's ya'lls thoughts? no warning lites have revealed them selves either. Thanks for any help. Cheers.

 

Digidashes are crap. My fuel gauge tells me im at 1/4 of a tank when I only have 2 gallons**reserve** left....So I try to keep it half full or above if I can help it.

 

Well, there are a few things that might be wrong. I had trouble with my 86 when I first put it all back together with lights and fuel gauge and it turned out that I forgot to bolt the frame to engine ground strap back on [], after I did that all was hunky dory. I doubt that is your problem, but certainly worth a look. Next 2 are sender,dash issues. Without test equipment, the easiet way to test is to pull your sending unit out of the tank and manually operate it (make sure it is grounded) and have someone watch your guage. Try to estimate full, half, quarter tank readings. Also you can check the resistance sweep of the sender with a digital ohm meter to see if there is a smooth transition from full to empty. Be sure and sweep kinda slowly to watch for bad spots (fluctuations) in resistance. If every thing seems ok and resistance readings appear ok, then possibly the I/C needs repair or replacement. Good Luck.

 

Thank you LB, I am hopeing it is just the sending unit. I plan on pulling it this week end and haveing a look. I will also check all grounds front to back. I'll post any results. Thanks for the direction. Cheers