My truck (97' F150 4.2) is acting up and I wanted to see if y'all had any ideas. I drove it on the freeway and back home for a 30 mile round trip. No problems. Got home and turned it off. Went back a few minutes later to move it and it wouldn't start. First it started and ran like crap. Rough idle and would stall. Now it just cranks and cranks.
No engine codes thrown. Battery is 12v when sitting and around 10 volts while cranking. Any ideas?
I vote for a new fuel filter
Slap on some new plugs & wires while you're at it. I had an 03' with that engine, it was pretty trouble free, just a dog on the highway, or maybe I was just too lame to keep the RPM's up. I got pulled over in my 99' F250 diesel last week, that damn thing really moves for such a big vehicle.
To do list: carpet X1, seatcovers X1
97' Green M Edition
▄︻┻┳═一
I pulled one plug and it still looks good. I changed the wires (and possibly the fuel filter) a few years back. I'm going to try and get some gas in the throttle body and see if it will crank over then. What's the easiest way to check for spark?
Borrow a timing light! All you need it for is the spark.
Fuel.
Find someone with a pressure gauge and see that you have the correct pressure at the fuel manifold. Probably around 40-50 PSI.
05 MX-5 Mazdaspeed #1024 Titanium Gray Mica
You could also try grabbing one of the wires in one hand and putting your other hand on the block while a volunteer turns the engine over.
05 MX-5 Mazdaspeed #1024 Titanium Gray Mica
I put some gas down the throttle body and it did start. Very rough idle, no power and then died. I tried it again and it won't even crank. Hopefully the battery is just weak (I have it on the charger now), but I'm afraid it's hydrolocked (known issue with that motor). White smoke blew out when it started that first time.
Is it low on Antifreeze since that would be the source for the Hydra-lock?
The overflow bottle still has anti-freeze in it. I don't drive it often enough to remember if it was full, or the level it's at now. I did pull the #4 cylinder plug which is supposed to get the worst if it's hydrolocked. No anti-freeze on it, just a bit wet with gas. I'm going to pull all the plugs tomorrow and check them.
Let's hope not. Check your oil. Any sign of antifreeze? Check your radiator. Any sign of oil?
If you think you really are hydrolocked, take out your sparkplugs and spray WD40 liberally into each plughole. I'd do this and wait overnight, then a squirt of oil or MM oil into each and then turn the crankshaft pulley to make sure it gets worked in. If you can't turn the crankshaft pulley with a socket and ratchet, then I'd guess you've got a locked up engine.
Fuel filter and plugs and wires are unlikely culprits.
Come to think of it, I recall Gary having a similar issue with his wife's SUV. It turned out to be the fuel pump.