Ford F-150 - 1997-2003 :: Truck Won't Crank Or Start After Warmed Up
Aug 7, 2013
I have a 97 f150 with a 4.9..... I drove it less than a half a mile and shut it off. when I got back in it to start it up it wouldn't do anything like the battery was dead but all the electrical worked but it would not turn over. after about 4 hours when I returned, it started just fine. drove it straight home and shut it off and immediately tried to start it again and had the same issue. What the culprit may be ?
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I left the keys in the ignition last night. I didn't think it was left on, but apparently it was. This morning when I tried to crank the truck, it wouldn't start. The dash lights came on, but it didn't make any sound. I tried to jump it off, and it still won't turn over. What it could be??
The truck that wouldn't start was a 97 Ford F150, the car I was trying to jump it with was a 96 Honda Civic. Someone told me that might be the problem, that the small car wouldn't give enough power to a truck...
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If I turn on my ignition switch and my gauges go to where they're supposed to be, the truck will crank. If I turn switch and , lets say gas needle for example, the needle goes to full then drops back to empty, the engine will turn over but will not crank.
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I have a 2001 f150, 5.4triton, 4x4 supercrew. I'm having trouble getting the truck started. About a month ago is when I first started having trouble with it, and it's happened more frequently until now it just won't crank up at all. The engine is turning over, but it it just won't fire. When it starts, it runs and drives fine, no cut off or rough idles. I replaced the cam sensor today (figured it'd be worth a shot for 20 bucks) but that wasn't it.
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I drive a 2001 ford f150 lariat 5.4L. My truck will crank but not start, i am getting complete spark, and have ran a full fuel pressure procedure, and am getting complete fuel pressure, there is no water in my gas, everything checks out how it should. I ran a test on my cluster and it showed a code that said i am not getting connection to computer to start. I removed the cluster and repaired all loose wires properly, and it still wont start! I have had many people look at it and they said it could still be a bad cluster.
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I am having problems with my 97 F150 6cyl. A couple of months ago, I noticed the truck after sitting for a few days without being started would not crank. After some trial and error, I found that turning the ignition switch on and off several times did the trick and the truck would crank right up. I was thinking this might be a fuel pump or fuel filter issue but, I'm not sure.
A couple of days ago I was going to drive the truck and did the ignition switch deal as usual and the truck cranked up but, there shortly after while just idling the motor died. I have tried and tried to crank it and it want start back. After thinking on it, I don't know if this is a fuel problem or not, or maybe even the ignition box.
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My Truck : 1999 Ford F-150 Extended Cab 4x4 5.4L V8
So the other day I was driving the truck and it just dies on me. Tried starting but it just cranked and cranked. Got it pulled over to a parking lot and then tried to start and I got it to run again. Died a couple mins later uo the road and it will not start at all anymore. I got it towed to my driveway and I've started diagnosing some things.
I dropped the tank thinking it was a pump I replaced awhile back. The pump wasn't running but jumped to conclusions and took it back to the auto parts store. They bench tested and it works fine. I checked for voltage at the pump connector. NOTHING. So I'm not getting power to Fuel pump. Then I checked the fuse and relay for the fuel pump. Everything was okay.
I did some research and decided to check for spark. NO SPARK. Another thing I noticed the other day was that the odometer is displaying all dashes. So I'm really unsure on what to really troubleshoot. I am going back to the truck tomorrow to check a few other things. I'm not sure if the Theft light is blinking or not so I will check that tomorrow and get back to you.
What to check? Any other relays or fuses besides the fuel pump? What about any modules to check like PCM, GEM, etc. Or I've heard the crankshaft sensor could be an issue.
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A cold engine crank will turnover and start normally. But stop to run and errand or grab lunch...and the warm 302 2 barrel engine will turn over very sluggishly, lke the battery is dying. If you wait until the engine is cool, an easy start is assured but that takes hours! A local repair shop has rebuilt the carb, the battery & cables are new, and the starter works fine when engine is cold. My local repair shop is out of suggestions. It seems to work a little to hold the gas pedal down on the floor for a warm engine start....but engine still turns over sluggishly when trying to start when warm. Now If I drive it.....I just drive it around town a bit then back home ...unless I stay several hours somewhere while the engine cools....but that's not fun. It is a convertible, fun to drive...and this problem needs to be solved.
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I drove my 03 f-250 to work Monday everything was good no issues. At end of my shift truck will not start . turn key dash lights up glow plugs cycle turn to start nothing . Does not turn over. after some checking batteries are good. Starter will crank if i manually engage it but truck will not run even with jumping starter with ignition turned on . hooked scanner up says cannot communicate. Checked fuses etc fuse #31 has no power to it (trans range selector and starter relay)question is where to look next?
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Alright, my 1999 7.3 keeps dying on me in the morning. About two weeks ago I noticed it started to have a weaker start up, even though it has two brand new batteries. Once it starts up, I get around the block and it dies there every time. Then I have to crank it for about 15 seconds for it to start again.
The crank gets faster and faster until it finally start, and the engine is very choppy, like its starving for fuel. After about ten seconds of that it return back to a smooth idle. I then take off, and about 50 yards later it does the same thing. After it does it the second time, the truck runs just fine for the rest of the day with no problems.
I have noticed that when if I turn the truck on and let it idle for 10 minutes first in the morning, it won't die on me. I replaced the camshaft position sensor thinking it was that, but it wasn't.
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So she will crank all day but no start. Theft light is going nuts like I am trying to steal my own truck!! I've read it could be a PATS issue.
However after I unplugged my pos batt cable and hook it right back up she starts like nothing ever happened.
its only happening every once in awhile. but it does get old. I have been just leaving my pos cable off whenever I shut the truck off.
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Took my dad's snailblazer (trailblazer) since the 4.2 i6 in it gets better mpg than the old worn 5.4 in the f150. Well I didn't leave much gas in the 30 gallon tank about 1/4 tank or 7 1/2 gallons. My dad took it to the gas station on Friday and filled it to 3/4 of a tank. Got back in the truck and attempted to turn it over and got nothing.
Battery cable was a bit loose from what he told me, so he tighten it up. Nothing. I know the fuel pump is still going cause when you turn the key forward you can hear it whine. Starter is only a few years old maybe 6 or so. Not sure if that went bad or something else.
Last time something similar happened the A/C compressor seized up and wouldn't allow the engine to turn over. Well we eliminated the compressor around '09 and bolted a pulley in its place. Off the top of my head I can't think of anything that would have seized up causing this.
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I have a 97 F150 w 4.6L engine with auto trans which I bought new and has approx. 150,000 miles on it. Very recently it would crank and crank and not start or sometimes would start. In searching through multiple threads on here many of the Ford techs recommended replacing the IAC valve as a cheap and easy to do fix and I did that. The OEM factory IAC valve appeared to be dirty with black soot. I also cleaned the MAF sensor in the air filter snorkel. I also replaced my very old battery at the same time. I verified that the fuel pump was running for about a second or two and shuts off after the ignition switch was turned to ON so the fuel pump is running since I could hear it. I replaced he fuel filter several years ago so it should be OK and not plugged.
I had to use starting fluid after the battery replacement to get the truck running but after I got it started and I did several driving cycles over three days to make sure the truck computer reset properly and the truck was running fine and starting without a problem. I was checking the starting every 4 hours or so for the first two days and it would start on the first crank every time without a hiccup.
This morning on day 4 when I went to start it the same problem occurred where it would crank several times and not start. I loosened the filter snorkel up and shot some starting fluid in there and it cranked up after a couple of tries and ran fine all the way to work. It seems like I have a fuel delivery issue of some type. I know the fuel pump is inside the tank and very expensive to replace if it turns out that it needs replacement. That is definitely beyond my capabilities. I plan to check the fuel pressure this weekend when I have a chance and can rent a gauge from Autozone.
My question is this: If it turns out to be a defective fuel pump can I just add an inline electric fuel pump outside the tank and have it pull through the tank in the pump leaving the in-tank pump abandoned in place? Are there any other sensors or parts I should be checking for voltages, resistance, etc. that would affect fuel delivery for starting? The truck seems to run very well with no misses of any kind and accelerates nicely after it starts. Also, no "Check Engine" light at any time and the bulb is working since it lights up momentarily when the ignition is turned to ON position.
Update Saturday June 25 - Got a fuel pressure test gauge and got the following results after installing a new fuel filter:
1. Bled off fuel pressure to connect gauge and after 5 or 6 Key On, engine off cycles the pressure came up to about 38psi and truck started up fine after pressure was at 38 psi. The pressure built up slowly after the bleed off with each ON/Off cycle and that is why it required 5 or 6 cycles to reach 38 psi.
2. Key ON, engine idling maintained 31 psi
3. Key ON, engine revved up slightly maintained about 31 psi and seemed to stay there even with more throttle increase.
4. Key ON, engine idling, disconnected fuel pressure regulator line and pressure increased to about 40 psi and stayed there
5 . Left the gauge connected after turning off engine. Key OFF, engine off, after 1 min fuel pressure increased to 33psi. It is about 90 degrees in the shade here today.
6 Key OFF, engine OFF, after 2 min gauge read 33 psi, after 5 min increased to 34 psi, after 15 min decreased to 33 psi, after 30 min decreased to 29 psi, after 45 min decreased to 26 psi, and after 60 min decreased to 23 psi. The pressure seems to decrease slightly with time which I think is what it is supposed to do. Is the pressure decrease rate too fast or about right?
The truck seems to be running fine and starts up immediately after sitting for a few hours but I am making sure to turn the key on/off for at least one or two cycles to build up fuel pressure and the truck starts every time for the last week. Does it seem like my fuel pump is OK or not? Fuel pressure regulator OK or not? Any other diagnostic tests I should run?
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When the block is cold my truck will not start. If i keep the block heater plugged in it will crank but is still a long start. I have tried just about everything i can think of and it is way too much to list so i will give as much info as i can.
New- gpr, glow plugs, HPOP, batteries, starter, fuses, valve cover harness/ injector and glow plug wiring, vacuum lines. I have checked out just about everything remotely possible.
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I have a '99 F-150 with 4.6L V-8. The truck has run perfectly since I bought it a year ago. My grandson took it a short distance to a neighborhood store, and when he got back he parked on the neighbor's lawn.
IMMEDIATELY after turning it off, I told him to move it, and it would not start. Wouldn't even turn over. I did a little research, and replaced the most likely culprit, the starter....no change in condition. When keyed to start, the dash lights up, but that's it! I did get under the truck and there IS voltage getting to the large power lead.
The starter has it's own solenoid, however there is another one mounted to the firewall. Does this have anything to do with the starter?
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My 1999 F-150 is having an issue after a tune up; changed coil pack, plugs and wires. It started and ran fine before, but after the tune up it doesn't even crank, just clicks and clunks. I hear a whine from the alternator, but last I checked (a couple days ago), it tested fine so I dunno if it went bad.
I thought it was PATS, but the theft light turns off when the key is in the on position and the fuel pump primes. I dunno if it's the battery, but it tests out OK with my voltage tester (12v+) But it may not have the amps required.
If the coil pack isn't grounded right, like if the platform it's on is corroded, would that cause this issue?
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I left my F150 to sit over the winter parked near my house. Battery was bad when I went to start it a few weeks ago. Got a new battery, threw it in, but still no start. It wouldn't crank.
Went to work on it today and the battery was totally dead, took it to schucks and they said it was bad. So I got it replaced with a fresh one and I'm still getting the same thing.
Turn the key on and accessories come on, turn it all the way and nothing happens, except for the aftermarket radio turns off. I replaced the ignition switch last year. I tore apart the dash to see if that went out again but it looks fine.
What should my next step be?
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I am having problems with my truck not sure where to start. It was my everyday truck until one day I got ready to leave for work and the truck wouldn't say anything. It was getting power but no crank no start. Called tow truck he checked battery said that it was good. I got home tried to start truck and it started. I drove to the store and it did the same thing no crank no start. It has 110,000 Sigle cab manual windows...
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I have a 2002 F150 5.4L (VIN-L) that has been sitting in the driveway since February. I have been a mechanic for 30 years for large commercial trucks, and my own truck has me stumped. I'm sure I've forgotten something but I'll try to list everything I have tried so far. It started with crank no start, no check engine light, checked for trouble codes got a trouble code for the CHT(cylinder head temperature) sensor.
- Replaced the CHT sensor. Cleared codes.
- Dash lights up fine, shows mileage, and anti-theft is not flashing while cranking.
- Fuel Pump does not seem make any sounds. Hit the tank with a hammer. Nothing.
- A little fuel comes out of the schrader valve on the fuel rail when I push on it. I have not checked it with a pressure gauge.
- Attempted to start with ether, nothing, so I'm assuming no spark.
- Fuel pump inertia switch isn't triggered.
- Checked several ground connections to the frame and checked ground connections in the PCM harness. All have less than 5 ohm resistance.
- Unplugged and plugged back in cam shaft sensor.
- Checked voltage on the TPS(throttle position sensor) I'm unsure about the results, if the TPS was bad wouldn't it just idle funny and/or stall?
Fuel Pump and PCM relays in the underhood fuse block appear to be good. All other fuses and relays appear to be good. I have been swapping the relays with one I think is good, although. Searched all over for additional relays, and found 3 inside the cab behind the passenger air-bag. Can't seem to find anything in the Haynes/Chilton manual that lists what they do. They are about half the size of the fuel pump relay.
Manually grounded the fuel pump relay, relay clicks but I don't hear a buzz from the fuel pump. Id like to run 12V to the fuel pump directly to see if that's my issue, but I'm not sure where to connect it without frying something important.
I bought the alldata.com DIY guide for my truck and it hasn't worked much. I have read extensively about others with similar problems and I just don't know what to do next. My main question here is, if the fuel pump is bad, would that stop the spark plugs from working? I'd rather not replace the fuel pump without being absolutely sure.
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I'm having a slow start issue with my 2008 Explorer Sport trac. Recently it's received a brand new fuel pump, a new fuel pump driver, new spark plugs and ignition coils! And it still hasn't fixed the problem, what's happening is when I start the truck after its hot, there's somewhat of a delay. As if it's starving for fuel, however, in the mornings on its first start or after a shift at work it starts just fine on the first start which prompted me to now think I'm having vapor lock! Gas cap is brand new too. I had the fuel injectors tested and they all seem fine, I'm at a complete loss.
It's killing me and as one can imagine I have spent a lot in parts and at this point in my life I have had to pay for labor instead of my usual DIY because I recently had major back surgery due to being hit by a big rig in December of last and pushed into the rear of an F350 while I was at a complete stop and the rig was doing about 40 mph. Been suffering ever since with constant doc visits, surgeries and so one to correct the issues. I'm tired of shelling out money with no solution, I had a solution I thought but apparently I was wrong. I'm going to change all relays that I think may affect the area....
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i have a 99 f150 with a 4.6 that will not start. it has sat for a while now. when i go to turn the key to turn it on it cranks and cranks and cranks but wont start. the theft light blinks like crazy and the odometer reads dashes. There is also a relay which i do believe is the pcm relay that clicks like crazy. when the relay clicks and the key is first turned to the on position the fuel pump will turn on and off as the relay clicks.
We tried putting a scan tool to it to try to pull a code and the scan tool wont connect. I do believe its the pats system kicking, but i also think its related to this relay clicking like a mother, maybe a bad connection in the junction or something. But I am not really sure how to try to start and find the problem. i have also tried replacing the relay that clicks and the new relay does the same thing.
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