 Tach/engine jumping up and down... help please |
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| tod914 |
 Jul 8 2007, 11:20 AM
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Advanced Member  Group: Members Posts: 3,755 Joined: 19-January 03 From: Lincoln Park, NJ Member No.: 170  |
Just started happening. The car is a 75 2.0 with fuel injection. It has a pertronix ignition. The problem is, it seems to be jumping up and down in the rmp's and idles very low. Idle adjustment didnt seem to help. I checked all the grounds and contacts including the tranny strap. I swapped out the voltage reg and throttle switch and the problem still persisted.
Computer problem? Timeing problem? timeing was done last year, fi trigger points a few years old. Pertronix problem? its about 4 years old Bad coil? 4 years old Grounding issue? has new fi harness from bowsby - 2 years old Head temp sensor? its about 2 years old. What would you all suggest. Thanks for the help, Tod |
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| So.Cal.914 |
Jul 8 2007, 12:20 PM
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#2
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"...And it has a front trunk too." Group: Members Posts: 6,588 Joined: 15-February 04 From: Low Desert, CA./ Hills of N.J. Member No.: 1,658 Region Association: None |
Check for a slightly tight valve, as it warms up the valve can raise up off the seat
lowering your compression in that cylinder. (IMG:style_emoticons/default/smile.gif) |
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Posts in this topic
tod914 Tach/engine jumping up and down... help please Jul 8 2007, 11:20 AM
9146986 I'd guess something in the ignition. If it ha... Jul 8 2007, 11:37 AM tod914 ok thanks, i'll try that. it's ok at star... Jul 8 2007, 11:55 AM Michael N Have you checked all your fuses? Jul 8 2007, 12:10 PM shaggy when i still had points mine did that same thing.
... Jul 8 2007, 01:00 PM shaggy you also might wanna check that the bearings/bushi... Jul 8 2007, 01:02 PM tod914 Ok guys thanks for the tips.. I'll order some ... Jul 8 2007, 07:10 PM McMark Also, make sure your coil isn't loose and grou... Jul 8 2007, 09:58 PM
ConeDodger
Also, make sure your coil isn't loose and gro... Jul 8 2007, 10:58 PM tod914 the coil has the rubber insulator pad around it an... Jul 8 2007, 11:38 PM ConeDodger
the coil has the rubber insulator pad around it a... Jul 9 2007, 12:43 AM tod914 swapped out the distributor with one the orginal o... Jul 16 2007, 12:45 AM |
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