91 lariat sputtering problem

bubbas91lariat · 06-07-2008, 07:48 PM

Hey guys. all of ya know about my baby, my 91 f150 lariat. Well, here for the past couple of days, when i go to start it up, it will idle up to about 1000 rpm, then it will try and bog to about 600 and it will start sputtering. On a couple occasions, it has shut off at a low idle like that. If i try to put it in gear, as soon as i take it out of park, it will shut off. When i start it back up, it will do fine, although i have had it shut off twice on a couple occasions. When i finish driving it, when i get out of the truck, theres a faint smell of burnt oil. I was wondering if maybe it needs a new set of plugs and wires, or maybe if its something worse. can somebody help me out?

thnx
james "bubba" (bubbas91lariat)

Jimmeh · 06-08-2008, 10:49 AM

It sounds like a situation I had with my Ranger, and the plugs and wires helped, but it was actually a very small vacuum leak that was causing the sputtering. The burnt oil sends up a red flag that you got an oil leak, though, and I'm pretty sure that won't really cause it to sputter and die unless you were completely out of oil.

The sputtering could be a lot of things, though. I'd start with the basics and do a tune up and maybe an oil change at the least before starting anything else.

bubbas91lariat · 06-08-2008, 12:25 PM

i was planning on changing my oil within the next couple days. could that help?

Chevy_Finatic79 · 06-08-2008, 04:10 PM

doubt it. changing the oil regularaly is always a good thing but I highly doubt it's going to help with the sputtering. like mentioned above it sounds like a tune-up is in order

bubbas91lariat · 06-08-2008, 05:41 PM

ok. That sounds cool. I might do that. I gotta get some money first though.

06-07-2008, 07:48 PM	#1
bubbas91lariat Senior Member Join Date: Dec 2005 Location: Elberton,GA Posts: 824	91 lariat sputtering problem Hey guys. all of ya know about my baby, my 91 f150 lariat. Well, here for the past couple of days, when i go to start it up, it will idle up to about 1000 rpm, then it will try and bog to about 600 and it will start sputtering. On a couple occasions, it has shut off at a low idle like that. If i try to put it in gear, as soon as i take it out of park, it will shut off. When i start it back up, it will do fine, although i have had it shut off twice on a couple occasions. When i finish driving it, when i get out of the truck, theres a faint smell of burnt oil. I was wondering if maybe it needs a new set of plugs and wires, or maybe if its something worse. can somebody help me out? thnx james "bubba" (bubbas91lariat) __________________ IF YOU AINT FIRST YOUR LAST!!!

06-08-2008, 10:49 AM	#2
Jimmeh Senior Member Join Date: Jun 2008 Location: Columbia Falls, Montana Posts: 94	It sounds like a situation I had with my Ranger, and the plugs and wires helped, but it was actually a very small vacuum leak that was causing the sputtering. The burnt oil sends up a red flag that you got an oil leak, though, and I'm pretty sure that won't really cause it to sputter and die unless you were completely out of oil. The sputtering could be a lot of things, though. I'd start with the basics and do a tune up and maybe an oil change at the least before starting anything else. __________________ 1992 Ford Ranger 4.0 XLT super cab 4X4 auto. A few mods, but it's not finished yet. 1995 Dodge Ram 1500 single cab short box 318 5 speed manual. The work rig.

06-08-2008, 12:25 PM	#3
bubbas91lariat Senior Member Join Date: Dec 2005 Location: Elberton,GA Posts: 824	i was planning on changing my oil within the next couple days. could that help? __________________ IF YOU AINT FIRST YOUR LAST!!!

06-08-2008, 04:10 PM	#4
Chevy_Finatic79 Senior Member Join Date: Mar 2008 Location: Lincoln NE Posts: 478	doubt it. changing the oil regularaly is always a good thing but I highly doubt it's going to help with the sputtering. like mentioned above it sounds like a tune-up is in order __________________ "She's gonna Freak when she see's my wheels" 85' Chevy C-10 Longbox (Rat) TBI 327 Cu.In./THM350 90' Chevy Suburban 4x4 TBI 350 Cu.In./700R4 http://www.truckforum.org/forums/truck-pictures-176.htm

06-08-2008, 05:41 PM	#5
bubbas91lariat Senior Member Join Date: Dec 2005 Location: Elberton,GA Posts: 824	ok. That sounds cool. I might do that. I gotta get some money first though. __________________ IF YOU AINT FIRST YOUR LAST!!!

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