starts fine idles high tell engine temp is 180 then drops off ,,,but ony to 8-900 rpm,,,vacuem hoses to my eye looks good ,,dint spray eather er anythin,,,did note that heat vents are non to fast in switch like from floor to defrost,,,any quick happind to me tips on where to check this right off??? n would that cause this higher idle condition?? thanks paps

ya know talkin ta myself again ,,,but i just realized that fer sure i have a vacuem issue with heating /cooling vents,,,cause had some fog in wimpsheild this mornin and dint clear none to fast on defrost till i hit freeway then zapped off fast (like posed to) so proves at higher speed (low vacuem )the doors drop to defrost ,,,have had this on a couple gm vehicles ,,,fun sumbeechus to fix too,,,anybody know ifn this 84 would have only one vac mod under dash n wehre is easiest way to reach it???

well id like ta shoot the idjut that designed the vacuem lines on these thing!!! did find a couple brittle plastci ones n a few that were bubba"d awready,,,and yeup bubbas my cousin so i did same (ran a lil peice of rubbar line between to repair em) still idles at 8-900 but vent defrost is fast

hey pappy how ya doin mayun??oh im fine bruthas thanks,,,hey i been fuggan round with them vacuem lines ,,,and now taday she runs 7-800 ,,,so maybe jus runnin this ol girl a lil is helpin,,,shes sat in a collection fer awhile,,,well paps i gotta go ,,ok i ll see ya later,,ok dude,,hey dont any of yous guys git jelious now ,,it ain my fault that the voices ony speak ta meeeeee!!!!

well no new news...i tried to set the tps other day and no luck gitton a reading by running 3 jumper wires...if touched c and then b id get 5.25 but nothing if touched a and b as book says...so i moved her around by ear nand ended up in same spot (purty much bottumed out on adjustment) goin to check iacs and see ifn one maybe stuck...after im done skreerooin things up ill have a freind with a pc set it up...if i dont git a lil lower on idle..right now 15-1600 cold at 180 still 8-900 sometimes 1000 depends how long actualy drove it

ok rednecks dont talk to me then...well i took that fuggan tps n got her set at 530 on multi meter... still idled high so pulled them iac deals n cleaned n set em at 1 1/8th" were 1 3/8ths.. slammed her back together n went fer ride....still fuggan high idle and engine light would come one under 1500 rpm...well i found a collapsed vac line...that took care of engine light...but nawt high idle...so i teeked that tps by hand n got her to idle at 800...then i realized the fug that i am...ive never checked to see ifn she way advanced on timming (hey my light broke) so thats next i hafta steal my bruthas t light n check that,,,maybe shes twiged out to like 10 er so n thats what the prolem is

well i plugged her into freinds scope thingie n we set the tps to 525 ,,,still 800 at lowest...it also had no codes...it did suggest possibles n thats (what dint want)was possible intake leak or egr...but egr did fluctuate when we plugged it ,,,so where can i guy scarf intake gaskets cheap

Well pappy, I hope you figured it out, cause I hate to see you talking to yourself anymore!

I don't have an answer for you, but good luck.

Matthew

Did you reset the IAC yet and then set your idle RPM?

thanks matt
hey jl...yes sir i did...we put on scope n set tps at 525 and did diogonstic and no codes ...and yes cleaned iacs and set to 1 1/8 she runs and idles fine ,,,but at 800...diagonostic dealie suggested maybe egr er manifold leak...cat helping me siad egr is fine (we unplgged n messed with it a bit) and since these crossfires are noted for leakin at the plenum cover,,,rekon thatd be my next thing is look fer gaskets n decide ifn im pullin plenum ...i keep ya posted

What do you want it to idle at? I don't think 800 sounds that bad?

Matthew

you know the idle issue is a controversy...cause it idles at 800 and i agree with ya it ain bad at all,,,but there posed ta idle at 600...but am i savin a lil fuel by lowering idle and then having to rev it to git moving or better to leave it at 800 n let it take off nice easy..(does that make sense) anyways i should say fug it and enjoy it...i am driving it most every day but am a tinker head and all the harleys are up ta snuff and have one fer sale so the vet ahs been my tinker toy...nothing drastic i rekon,,,its jus me i geuss ...what do you idle at ...a couple motorhead bruthas looked and listind to it n said fug it shes sweet as is...ok ill crawl back under my rock (haw prolly tell tommorow) wahahaha be good

My 89 idles between 600-700. When it's 700 it's happy, when it's 600 it's a little choppy. Personally I'd be ok with 800.

Matthew

you know matt your right...this 800 (regularly) is ok with me too...i prolly leave alone n just enjoy (for a day er two)...im just a fruit that way and ifn shes posed to idle at 6-700 id go fer the 650 -700 but nawt ifn nothins wrong and at a big expense and lotsa werk...so fer now ill git ahold of vette2vette (thanks bog)hes been a good cheeyut ...and order me some outer winder seals and a anti rattle kit etc...geeze just this mornin i kilt the ol girl tryin to let clutch out at this 800 level at 600 id prolly be shmokin my clutch wahahahaha