guru1974

yup, and as bad as i hate to say...I broke the damn thing removing the case. Even tried another tach, it didnt work...so I am wonderin about the pigtail, wire colors dnt match 76 or 77 wiring diagram . mines a 77. i bruoght it back from a 16 year slumber, and ive only been able to drive around the neighborhood(live out in the country) . I have OCD when it comes to knowing what the motor is doing, all the gauges seem to be working properly other than the tach, and temp guage needs a new sending unit soooooo. #1- what gives with the pig tail, #2- should i just go ahead and get aftermarket guages. ATTN: for those members that require gramatically perfect spelling and acurate use of the english language, please look over me i get excited tlkn about cars and kinda jump around and ramble uncontrollably .

Now that is funny right there, dont care who you are....lmao. that even made my skin wrinkle.

thanks just the same,so far really cool forum .

You gotta short somewhere for sure, and possibly a timing issue...not sure about the second. the wiring however,i just finished going over the majority of my new 77 and found a brake light bulb to be shorting out the car,it was corroded.check to see what else shares the same circuit on the fuse panel. the popping/back firing could be fuel and/or timing, most likely timing.

yes all original equipment from all appearances, it was sticking like.....would move really slowly or not at all stayed at last rpm when trnd off.and what year the pigtail is exactly.

,im gonna love this place, i can already tell. the electrical system seems to have never been tampered with, the car sat 16 yrs before when i got it. its a 77 and the pigtail for tach is....red/blk,g,blk,white/red,white/blk,red/blu,g/white.its not the first time ive seen a car or a tach but this little deal has really got me puzzled. and i hope i posted in the right place.

Just wanna go ahead and say howdy to everybody. finally got found by a 77 280 and i love it. been sittin 16 years got the old girl home and one week later got to go for the first ride. thought all the hard work was finished since its running smoth as butter........WRONG! having a heck of a time with tachometer issues. have been cruizin forums for days hopin that my first post wouldnt be a help wanted ad. but, the 76 and 77 wiring diagrams i have are diff colors than my tach wirin which is drivin me nuts. so, hello , great forum ,and please help all in one. :classic: directions please,