 Tach/engine jumping up and down... help please |
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| tod914 |
 Jul 8 2007, 11:20 AM
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#1
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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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| tod914 |
Jul 8 2007, 11:38 PM
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Advanced Member Group: Members Posts: 3,755 Joined: 19-January 03 From: Lincoln Park, NJ Member No.: 170 |
the coil has the rubber insulator pad around it and its tight. it hasnt been moved in some time. how could i tell if it was grounding to the tin? would there be a visual sign? very much a novice when it comes to electric issues (IMG:style_emoticons/default/huh.gif)
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| ConeDodger |
Jul 9 2007, 12:43 AM
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#3
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Apex killer! Group: Members Posts: 23,613 Joined: 31-December 04 From: Tahoe Area Member No.: 3,380 Region Association: Northern California 
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QUOTE(tod914 @ Jul 8 2007, 10:38 PM)  the coil has the rubber insulator pad around it and its tight. it hasnt been moved in some time. how could i tell if it was grounding to the tin? would there be a visual sign? very much a novice when it comes to electric issues (IMG:style_emoticons/default/huh.gif) All that needs to happen is for one of the electrical connections to contact the tin. If it is tight and none of the connections is touching tin that is not your problem... But it still could be a grounding issue... Just not a simple one. |
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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 So.Cal.914 Check for a slightly tight valve, as it warms up t... Jul 8 2007, 12:20 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 swapped out the distributor with one the orginal o... Jul 16 2007, 12:45 AM |
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