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Naters29 · 12-10-2022, 02:31 PM

Recently came in to a 86 holiday rambler imperial. Replaced the starter and the fuel pump ( the last owner was not very nice to her) that batteries and checked all fuses. Still won't crank! Any ideas please.

MrMark52 · 12-10-2022, 02:35 PM

Neutral safety switch?

Whose chassis? Ford or Chevy? If Chevy, check out the P30 Chev Motorhome manual in the Files section of the board.
If Ford (or Chevy, or Dodge) - you need to find a chassis manual and wiring diagram for your coach.

Argosy · 12-10-2022, 05:43 PM

1986, did you check connections, including grounds to make sure they're clean and tight? A chassis that old will likely have problems with corrosion. Especially if previous owners weren't nice.

153stars · 12-11-2022, 07:00 PM

If GM, may still used fusible link by starter. It's about 1/2"x1" cylinder on the wire. Are you sure you hooked up the right small stud on the starter solenoid.

twinboat · 12-11-2022, 08:06 PM

Why change the starter and fuel pump ? Ones failure doesn't effect the others operation.

Is it not cranking ? Starter, battery, wiring related.

Is it cranking but not starting ? Fuel, ignition related.

Which is it ?

donr103 · 12-12-2022, 11:15 AM

What I would do.. 1st.. go down by starter.. see if you have power on big lugs at starter.. then pull off purple wire.. or smaller wire.. then have helper try and crank it.. I am assuming chevy.. and not cranking.. use all safety precautions.. see if have power when helper is trying to start.. on smaller wire.. next.. short across to large lugs.. use what ever you have and see if cranks..
This will tell you if problem is at starter or wiring to starter.. also test for good chassis ground.. the fast way this is done.. take jumper cables and put one cable on big beefy part of the engine and other end on frame.. grind them back and forth.. and have helper try.. many times.. ground is bad.. 5mins test.. free..
What is date on every battery including position of each.. ? Again I take you at your word all batteries ok.. but you must tell us the date on each.. we need this to better help you.. too many waist time saying batts are ok.. only to find bad ones.. they all must be good.. and they must be tested.. it's free and unless you have thousands dollars tester.. then get that done.. 90% of times.. it comes down to bad battery.. somewhere..
Now.. you should get a basic automotive repair book for Chevy ck2500 or ck3500 for 1986.. you most likely will have to order online.. maybe used on eBay..
If Chevy or ford.. they used same eng and trans in pickups... this will have engine wiring diagrams and troubleshooting steps ECT.. and will get you 90% there..
Report back and better opinions will follow .. when you try to crank.. dose dash lights and gauges work?
Good luck and keep us posted