Need help with starting

Reply Subscribe

Thread Tools

Search this Thread

Jan 13, 2022 | 10:15 AM

SCAR3113

Thread Starter

Trailering

Joined: Dec 2021

Posts: 15

Likes: 0

Need help with starting

Last night I drove my truck (1991 Ford F-150) home from the shop after they put a new solenoid in it to fix a starting problem. I even turned it on and off afew times to make sure it was fixed and everything worked as it should. This morning I went to start it and it had plenty of cranking power and would crank but still couldn’t get it to start. Any help or recommendation would be appreciated, thank you!

Jan 13, 2022 | 11:28 AM

rla2005

Fleet Owner

Joined: Oct 2005

Posts: 20,789

Likes: 1,753

From: Kentucky

Does the fuel pump run for 1-2 seconds when cycling the key from Off to Run?

Have you check for spark?

Have you tried using some starting fluid to see if the engine fires up?

Jan 13, 2022 | 11:50 AM

SCAR3113

Thread Starter

Trailering

Joined: Dec 2021

Posts: 15

Likes: 0

Reply to rla2005

Fuel pump does run, I checked for spark at the coil but I never pulled any spark plugs but I’m getting it in for a tune up Monday. We also have tried starting fluid. It ran fine in the summer but temps have dropped and that’s when it started acting up. So I’m not sure

Jan 13, 2022 | 12:00 PM

rla2005

Fleet Owner

Joined: Oct 2005

Posts: 20,789

Likes: 1,753

From: Kentucky

Did the fuel pump stop after 1-2 seconds or stay running?

Old/worn ignition components tend to show their weakness in cold as well as very hot. You tried starting fluid, did it actually start?

Jan 13, 2022 | 12:22 PM

SCAR3113

Thread Starter

Trailering

Joined: Dec 2021

Posts: 15

Likes: 0

Reply

The fuel pump stays running while trying to crank. When i tried starting fluid it was before i got a new solenoid so it didn’t help but when I get home I’m gonna see if starting fluid helps and if so I’ll pull off the fuel line and see if it’s pumping. Thank you

Jan 13, 2022 | 03:35 PM

lisagoud

Fleet Mechanic

Joined: Nov 2003

Posts: 1,500

Likes: 2

I have been through that problem numerous times and it always ends up being one of the 3 relays bad. I always carry extra ones with me especially in the winter. They are located inside the left fender towards the back of the cab. one is for the ecm (no spark on starting) one is for the fuel pumps in the starting position before the ecm takes over running. the 3rd one I believe is for the horn relay which is the same as the rest of them. I can tell you that the same relay fits all 3 applications even though they are listed separate.

Jan 13, 2022 | 03:48 PM

SCAR3113

Thread Starter

Trailering

Joined: Dec 2021

Posts: 15

Likes: 0

I got in running

I tried cranking it but it wouldn’t start so I sprayed some starting fluid in it and it fired up and ran fine after it started. The throttle was sticking a little bit before the starting problem but now it’s sticking at a higher RPM.