Flipper Posted July 22, 2020 Share Posted July 22, 2020 I have a 1987 exMOD 90 with a 2.5 diesel . Lockdown meant it hasnt been driven and when I came to fire it up not much happened.... I can hear a click (presumably the starter solenoid), when I put another battery pack onto to the existing battery and short the starter I manage to get it to start however its not a lasting solution or ideal for supermarket car parks. The battery shows 12.84V after charging but once used to attempt to start (and failing) it drops to 9.4V . Is this as simple as a new battery or should I be testing for something else as well ? Any advice gratefully received. Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted July 22, 2020 Share Posted July 22, 2020 So it doesn't start on the key with a jump-start? Quote Link to comment Share on other sites More sharing options...
Maverik Posted July 22, 2020 Share Posted July 22, 2020 Battery contacts check for clean and tightness. Quote Link to comment Share on other sites More sharing options...
Flipper Posted July 24, 2020 Author Share Posted July 24, 2020 No it wont start on the key with a jump. Ive cleaned the contacts and it made no difference . But I appreciate the ideas thanks Quote Link to comment Share on other sites More sharing options...
Maverik Posted July 24, 2020 Share Posted July 24, 2020 See if you can borrow a reconditioning charger, check the battery fluid, top up if needed then put through a recon charge, other than that it sounds like your battery is a bit duff. Shouldn't be dropping that low. Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted July 25, 2020 Share Posted July 25, 2020 If it stays at 9.4v for any time at all after trying to start, the battery is toast. A good one will spring back up to ~12v very quickly. Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted July 25, 2020 Share Posted July 25, 2020 Charge it fully, leave 24hrs, should still be 12.5+V. If not, new battery time. Suggested you check for parasitic losses, as it is quite a short time for it to fail, especially in summer. Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted July 25, 2020 Share Posted July 25, 2020 Even very dead ones can have 12v on them, it's what they do under load that's telling; Here's the same battery in good condition Vs when it died, with a ~1A load being applied and then removed over a period of hours - both bounce back to ~12v but you can see how the bad one doesn't have the capacity. Quote Link to comment Share on other sites More sharing options...
Flipper Posted August 2, 2020 Author Share Posted August 2, 2020 Thanks all - bit the bullet and bought a new battery. Now it will start if i short out the starter / solenoid but not on the key .. its almost as if theres not quite enough power to start it ... so new solenoid im guessing now ? Thanks again for the help Quote Link to comment Share on other sites More sharing options...
western Posted August 2, 2020 Share Posted August 2, 2020 Probably better off replacing the complete starter motor, you will have to remove it anyway to replace the soleniod, a new starter motor will have a 12 month warranty too. Quote Link to comment Share on other sites More sharing options...
steve b Posted August 2, 2020 Share Posted August 2, 2020 will it start by bridging the battery side of the solenoid to the trigger terminal ? (white red wire) If not then either get that one reconditioned at a good auto-electric engineers or as Ralph says put a new one on cheers Steve b Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.