P.M-ing my 91 F150
03-05-2015, 02:35 PM
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P.M-ing my 91 F150
So I bought a 91 xlt lariat early last month. It runs and idles smoothly but Im thoroughly P.M-ing it just for piece of mind. So far I've:
-Replaced spark plugs, wires, distributor cap, and rotary button
-changed the oil and filter
-replaced air filter
This weekend I'm replacing the thermostat so I'm going to go ahead and flush/refill the radiator.
My question is: am I missing anything?
Also what bolt-ons would you guys recommend to improve overall engine performance/efficiency? I'm not really looking to increase horsepower I just want the smoothest running motor possible. Thanks.
-Replaced spark plugs, wires, distributor cap, and rotary button
-changed the oil and filter
-replaced air filter
This weekend I'm replacing the thermostat so I'm going to go ahead and flush/refill the radiator.
My question is: am I missing anything?
Also what bolt-ons would you guys recommend to improve overall engine performance/efficiency? I'm not really looking to increase horsepower I just want the smoothest running motor possible. Thanks.
03-06-2015, 08:37 AM
#5
1994 F150 XLT 5.8L 2wd
x2 on the vac lines, I went with silicone lines and love them (these from siliconeintakes), 22ft of 4mm hose will do all of the small lines, if you want the other lines also then it's better to get the engine dress up kit and add an extra 12ft of 4mm hose.
I would also think about replace the Ignition Coil, if it looks original for sure. Belt along with idler and the tensionor pulley always a good thing.
Clean up chassis grounds and battery terminals (a little sand paper/wire brush), electrical connectors (quick drying electronic clean) and lightly coat them with some dielectric grease.
Brake fluid, most people forget about it. Like chris said brake lines are always a good idea.
If you are draining the coolant install a Prestone Flush Kit (like $4 at walmart), it stays in perm. and makes flushing more controlled, helps bleed trapped air, and is probably one of the first things I put on every vehicle. Also wouldn't hurt to grab a bottle of Prestone (or other brand) Chemical Flush for your coolant system. Follow the directions for the three day flush, *warning: don't use straight water like it recommends if you have a chance of freezing weather, just add it straight to your coolant/antifreeze mix that's currently in there*
I always replace fuses on anything that's 20yr old, you can get an assortment of 120ct fuses from rockauto for like $12, less from ebay or amazon. Between fuses and cleaning connectors/contacts you will prevent almost all electrical issues that come with the truck. Also think about ordering the bulbs online, I got all exterior bulbs+interior+dash bulbs from rockauto for less than just the two headlight bulbs would cost at an auto parts store.
High quality wiper blades.
Not really PM but I also recommend pulling the bench out of the truck, vacuuming and use a carpet shampooer on the floor and bench. I also hit the sliding tracks and pivot points for the seat back with white lithium grease.
Also check the striker bushings that the door latches onto, along with hinge pin bushings.
Only other thing I can think of right now is to go with an e-fan conversion. Cheap, yet reliable, pulling a mopar sedan fan ($30-40), temp controller ($20), relays and wiring ($10). It's very simple to install and will make a huge difference on the amount of engine noise you hear. Seriously like hitting the ATT button on a stereo, you can hear it running but it's no where near as loud. I also notice a bit of a pick up in power with my swap and unit505 has dyno's that they give back up to 20HP to an engine.
I would also think about replace the Ignition Coil, if it looks original for sure. Belt along with idler and the tensionor pulley always a good thing.
Clean up chassis grounds and battery terminals (a little sand paper/wire brush), electrical connectors (quick drying electronic clean) and lightly coat them with some dielectric grease.
Brake fluid, most people forget about it. Like chris said brake lines are always a good idea.
If you are draining the coolant install a Prestone Flush Kit (like $4 at walmart), it stays in perm. and makes flushing more controlled, helps bleed trapped air, and is probably one of the first things I put on every vehicle. Also wouldn't hurt to grab a bottle of Prestone (or other brand) Chemical Flush for your coolant system. Follow the directions for the three day flush, *warning: don't use straight water like it recommends if you have a chance of freezing weather, just add it straight to your coolant/antifreeze mix that's currently in there*
I always replace fuses on anything that's 20yr old, you can get an assortment of 120ct fuses from rockauto for like $12, less from ebay or amazon. Between fuses and cleaning connectors/contacts you will prevent almost all electrical issues that come with the truck. Also think about ordering the bulbs online, I got all exterior bulbs+interior+dash bulbs from rockauto for less than just the two headlight bulbs would cost at an auto parts store.
High quality wiper blades.
Not really PM but I also recommend pulling the bench out of the truck, vacuuming and use a carpet shampooer on the floor and bench. I also hit the sliding tracks and pivot points for the seat back with white lithium grease.
Also check the striker bushings that the door latches onto, along with hinge pin bushings.
Only other thing I can think of right now is to go with an e-fan conversion. Cheap, yet reliable, pulling a mopar sedan fan ($30-40), temp controller ($20), relays and wiring ($10). It's very simple to install and will make a huge difference on the amount of engine noise you hear. Seriously like hitting the ATT button on a stereo, you can hear it running but it's no where near as loud. I also notice a bit of a pick up in power with my swap and unit505 has dyno's that they give back up to 20HP to an engine.
03-06-2015, 12:19 PM
#7
Senior Member
Motorcraft PCV Valve - Motorcraft, nothing but Motorcraft, so help you Motorcraft. (With regards to the PCV).
With regards to the Rotor button, you've already replaced it, but Motorcraft DR374B is the best one (in my opinion). Better materials and best fit than most aftermarket units.
Note: I don't recommend Motorcraft for everything (or even mostly everything for that matter), but for these parts I do.
Also, with your oil filter, I'm assuming you didn't use an orange Fram, right? - If so, take it off now.
With regards to the Rotor button, you've already replaced it, but Motorcraft DR374B is the best one (in my opinion). Better materials and best fit than most aftermarket units.
Note: I don't recommend Motorcraft for everything (or even mostly everything for that matter), but for these parts I do.
Also, with your oil filter, I'm assuming you didn't use an orange Fram, right? - If so, take it off now.
Last edited by qdeezie; 03-06-2015 at 06:03 PM.
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03-06-2015, 12:19 PM
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x2 on the vac lines, I went with silicone lines and love them (these from siliconeintakes), 22ft of 4mm hose will do all of the small lines, if you want the other lines also then it's better to get the engine dress up kit and add an extra 12ft of 4mm hose.
I would also think about replace the Ignition Coil, if it looks original for sure. Belt along with idler and the tensionor pulley always a good thing.
Clean up chassis grounds and battery terminals (a little sand paper/wire brush), electrical connectors (quick drying electronic clean) and lightly coat them with some dielectric grease.
Brake fluid, most people forget about it. Like chris said brake lines are always a good idea.
If you are draining the coolant install a Prestone Flush Kit (like $4 at walmart), it stays in perm. and makes flushing more controlled, helps bleed trapped air, and is probably one of the first things I put on every vehicle. Also wouldn't hurt to grab a bottle of Prestone (or other brand) Chemical Flush for your coolant system. Follow the directions for the three day flush, *warning: don't use straight water like it recommends if you have a chance of freezing weather, just add it straight to your coolant/antifreeze mix that's currently in there*
I always replace fuses on anything that's 20yr old, you can get an assortment of 120ct fuses from rockauto for like $12, less from ebay or amazon. Between fuses and cleaning connectors/contacts you will prevent almost all electrical issues that come with the truck. Also think about ordering the bulbs online, I got all exterior bulbs+interior+dash bulbs from rockauto for less than just the two headlight bulbs would cost at an auto parts store.
High quality wiper blades.
Not really PM but I also recommend pulling the bench out of the truck, vacuuming and use a carpet shampooer on the floor and bench. I also hit the sliding tracks and pivot points for the seat back with white lithium grease.
Also check the striker bushings that the door latches onto, along with hinge pin bushings.
Only other thing I can think of right now is to go with an e-fan conversion. Cheap, yet reliable, pulling a mopar sedan fan ($30-40), temp controller ($20), relays and wiring ($10). It's very simple to install and will make a huge difference on the amount of engine noise you hear. Seriously like hitting the ATT button on a stereo, you can hear it running but it's no where near as loud. I also notice a bit of a pick up in power with my swap and unit505 has dyno's that they give back up to 20HP to an engine.
I would also think about replace the Ignition Coil, if it looks original for sure. Belt along with idler and the tensionor pulley always a good thing.
Clean up chassis grounds and battery terminals (a little sand paper/wire brush), electrical connectors (quick drying electronic clean) and lightly coat them with some dielectric grease.
Brake fluid, most people forget about it. Like chris said brake lines are always a good idea.
If you are draining the coolant install a Prestone Flush Kit (like $4 at walmart), it stays in perm. and makes flushing more controlled, helps bleed trapped air, and is probably one of the first things I put on every vehicle. Also wouldn't hurt to grab a bottle of Prestone (or other brand) Chemical Flush for your coolant system. Follow the directions for the three day flush, *warning: don't use straight water like it recommends if you have a chance of freezing weather, just add it straight to your coolant/antifreeze mix that's currently in there*
I always replace fuses on anything that's 20yr old, you can get an assortment of 120ct fuses from rockauto for like $12, less from ebay or amazon. Between fuses and cleaning connectors/contacts you will prevent almost all electrical issues that come with the truck. Also think about ordering the bulbs online, I got all exterior bulbs+interior+dash bulbs from rockauto for less than just the two headlight bulbs would cost at an auto parts store.
High quality wiper blades.
Not really PM but I also recommend pulling the bench out of the truck, vacuuming and use a carpet shampooer on the floor and bench. I also hit the sliding tracks and pivot points for the seat back with white lithium grease.
Also check the striker bushings that the door latches onto, along with hinge pin bushings.
Only other thing I can think of right now is to go with an e-fan conversion. Cheap, yet reliable, pulling a mopar sedan fan ($30-40), temp controller ($20), relays and wiring ($10). It's very simple to install and will make a huge difference on the amount of engine noise you hear. Seriously like hitting the ATT button on a stereo, you can hear it running but it's no where near as loud. I also notice a bit of a pick up in power with my swap and unit505 has dyno's that they give back up to 20HP to an engine.
03-06-2015, 06:46 PM
#10
Agreed!
I believe there's a good write-up here somewhere that involves upgrading the charging system wiring. I've been meaning to do that myself, along with an alternator upgrade, headlight wiring upgrade (I think either this site or another has a good write-up on that one), and the electric fan swap. I just always seem to have too many irons in the fire.
I believe there's a good write-up here somewhere that involves upgrading the charging system wiring. I've been meaning to do that myself, along with an alternator upgrade, headlight wiring upgrade (I think either this site or another has a good write-up on that one), and the electric fan swap. I just always seem to have too many irons in the fire.