diputz42
15+ Year Contributor
- 54
- 0
- Aug 30, 2004
-
Dublin,
California
before you all tell me to do a search and read other posts, thats been done. i dont have that spuratic jumping twitching tach needle like other have posted about. i posted about this before i think and i didnt get much of a response. heres the scenario
when the car is first started for a while (usually in the morning after it has sat for a few hours) the tach will read zero. even if i rev it up a bit, it reads zero. then usually, after a short drive (seems to me like once the engine has warmed up), the needle will seem to catch on the tach spinner. sometimes it doesnt even need to warm up and it will catch. like this morning for example, i started the engine, tach read 0. then i put it in neutral and dropped the clutch and the tach seemed to catch. the engine idles quite high for the first few minutes (i assume this is normal). when the engine is idling high, the tach reads 2000. then when the engine finally warms up and idles normal, the tach reads 1500 when it should be 750-1000 at normal idle. even though the tach reads 1500, i can tell by the sound that it is idling at 750. i ordered a pocket logger, so once i get that in the mail (next week), ill plug it in and see where its idling.
now when i start driving, the tach seems to lag. what sounds like 5000rpm will read 4000 on the tach. and what sounds like redline will read about 6000 on the tach. and when i rev up the engine in neutral and the rpm drop back down to normal idle, the tach seems to lag. what i mean is as the rpm declines towards idle and lets say is at 1500 and declining, the tach might read 2500 and be declining slower than engine speed decline.
now heres the best part. when the engine/tach is still in this condition and i shut off the car, the tach needle lightly drops to ~500 and sits there. THE CAR IS OFF! and this is the ghetto part: if i continually open and slam the door, the tach needle slowly gets shaken down towards 0. and when i finally do get it back down to 0, the tach will work fine.
my best guess is something's loose. but i dont want to open up the gauge cluster and mess with/up anything. im hoping someone here has had this problem and knows a quick fix for it!!
thanks every1
when the car is first started for a while (usually in the morning after it has sat for a few hours) the tach will read zero. even if i rev it up a bit, it reads zero. then usually, after a short drive (seems to me like once the engine has warmed up), the needle will seem to catch on the tach spinner. sometimes it doesnt even need to warm up and it will catch. like this morning for example, i started the engine, tach read 0. then i put it in neutral and dropped the clutch and the tach seemed to catch. the engine idles quite high for the first few minutes (i assume this is normal). when the engine is idling high, the tach reads 2000. then when the engine finally warms up and idles normal, the tach reads 1500 when it should be 750-1000 at normal idle. even though the tach reads 1500, i can tell by the sound that it is idling at 750. i ordered a pocket logger, so once i get that in the mail (next week), ill plug it in and see where its idling.
now when i start driving, the tach seems to lag. what sounds like 5000rpm will read 4000 on the tach. and what sounds like redline will read about 6000 on the tach. and when i rev up the engine in neutral and the rpm drop back down to normal idle, the tach seems to lag. what i mean is as the rpm declines towards idle and lets say is at 1500 and declining, the tach might read 2500 and be declining slower than engine speed decline.
now heres the best part. when the engine/tach is still in this condition and i shut off the car, the tach needle lightly drops to ~500 and sits there. THE CAR IS OFF! and this is the ghetto part: if i continually open and slam the door, the tach needle slowly gets shaken down towards 0. and when i finally do get it back down to 0, the tach will work fine.
my best guess is something's loose. but i dont want to open up the gauge cluster and mess with/up anything. im hoping someone here has had this problem and knows a quick fix for it!!
thanks every1
