1999 F53 Triton V10 Not Starting

[Tbatthetop]

1999 Newmar Dutch Star F53 Triton V10 is having no start issues. Here are the symptoms:
Ran in April for our trip to the coast. Unloaded at the house and then at time to move to its parked location it was having low cranking revolutions. Boost was applied and then started up. Moved it to its spot set the jacks extended the slide out and locked it up.

Went to start it July for the trip back to the coast and it just cranks. Sounded low on cranking amps again so tried the boost. Nothing this time just cranks. So I replaced the battery since they had some age on them. Replaced the house batteries as well. All new batteries in MH & Chassis. Nothing still same symptoms. Repacked the CPS & Knock Sensor. Nothing still same symptoms. No wires are chewed or broken everything appears in tact. Swapped out PCM Relay #6 with #4 then #5 and same symptoms. No Fuel pressure after testing and no spark at spark plugs. Removed air hose at intake manifold shot with starting fluid to see if any combustion was going to occur. Nothing still same symptoms. The key switch when turning over seems to sometimes engage the starter and sometimes it does not. Thought maybe gear selector was faulting but does not seem to be.

Could the ignition switch be faulting out and not be sending power to the PCM?

If the slide out and jacks are down with it prevent from starting?

I have been searching for a service manual and found one at www.helm.inc but I am still waiting for it to arrive?

Any help would be greatly appreciated!

[MSHappyCampers]

Hi ! Welcome to IRV2! We're sure glad you joined us!

Good luck, happy trails, and God bless!

[Mark_T]

Put it in neutral and try to start it.

[Mark_T]

Have you check all the fuses?

[Mark_T]

Deleted

[arcaguy]

I would look for a common hot lead or a common ground for the ignition and fuel injection system, they may be on the ignition switch. It sounds very much like an electrical issue. A wiring diagram would be very helpful. Good luck.

[HarryStone]

I have the manual for the 2006. Don't know how different they would be, but I could PM you the diagrams.

[Tbatthetop]

Originally Posted by HarryStone

I have the manual for the 2006. Don't know how different they would be, but I could PM you the diagrams.

That would be awesome. It’s worth a try until my manual arrives. Been delayed due to the fires.

[Russ Silber]

On my 1999 same as yours I put a push to start button on to bipass all of ford's safety stuff. My key switch was the probly and perhaps transmission neutral switch. Run wire from battery to starter solenoid with switch in line. Turn key to on and push switch. Indy start. Also changed out starter. Old one was getting iffy. Never had fuel issue.
Good luck 321 999 4555 if you want to compare notes.

[tiffy2000]

Might be IAC valve, hold down gas pedal about an inch and try

[Tbatthetop]

Originally Posted by Russ Silber

On my 1999 same as yours I put a push to start button on to bipass all of ford's safety stuff. My key switch was the probly and perhaps transmission neutral switch. Run wire from battery to starter solenoid with switch in line. Turn key to on and push switch. Indy start. Also changed out starter. Old one was getting iffy. Never had fuel issue.
Good luck 321 999 4555 if you want to compare notes.Attachment 303891

Thank you Russ, after I check and test ignition and PCM I may give that a try. I appreciate you send out your # just in case. I will update you with my findings.

Tony