Ford F-150 - 1997-2003 :: 2002 - Crank But No Start Or Spark
Apr 6, 2014
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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All of a sudden my 2002 F150 6cyl, will crank but won't start. First thing I did was hook up my timing light to see if I'm getting spark when I crank. Tried a few different plug wires.....no spark. Can a coil just go out like that? I have a multimeter, what do I check to see if the plug that goes to the coil is providing correct power and input?
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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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I recently took a 4.6 from a 98 e-150 van and put in a 1997 f 150. put new oil pump, bearings, and rings. Got everything hooked up and ready to roll. turn over but no spark to any cyl. What it might be?
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Having problems with the truck - either a no crank situation and now a complete shut down while driving at any speed.
Dash is blank with no power when truck shuts down, here is the hitch with the no crank, I pulled and replaced the PCM module and the truck fired up without hesitation. I had to do this a few times over the course of today to get home. I can live with having to do that for a while but it is unnerving to have the truck shut down with 0 notice.
Throttle body was just cleaned, and all starter/battery connections cleaned and protected. Brand new PCM relay. What does this relay have to do with reset, for clean start up after removing it and then just putting it back in it's place? Would there be any solutions for the dies completely while driving, or fails to crank?
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After short trip, 02 f-150 v-6 will not crank every time but engine turns over. When it does crank, it runs fine the entire trip. 189,000 miles on motor and is a 4x2 extended cab.
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back story but may have nothing to do with problem. battery terminal bolts were rusted solid so i cut them off and replaced. truck stated fine the last time i started it before doing this.
I turn key and get a single click. i tried jumping 2 large poles on fender solenoid and still one click no crank. i had taken off the starter and autozone tested and it passed. i checked voltages everywhere i could think of and all were as to be expected.
could it be the starter even though it passed?
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I have an 02 f150 5.4 4x4, drowned it a while back, thought i had hydro lock, crank can be turned by hand though as far as i can with a wrench, so internals seem to be fine, no bent or broken rods that i could tell, ripped everything apart cleaned it up put it back together, new fuses, new ignition relay, new starter, alternator and battery as well, turned the key to on and got all my electronic stuff back up, turned to start and it all goes dark, which i assume is because at that point its sending power to the starter, but the starter didn't turn or crank the engine...
So question being when i put my new starter on is it possible that i might have crossed a wire or something that would cause it to not crank? and due to the fact that I had water in it, and had hydro locked it, all my plugs are out, now I know that spark is needed for the engine to run, but shouldn't be needed just for the crank to turn right? question being is that once i fix the wires on my starter, I am looking for initial crank before start up, so do i need to put a plug or two back in and hook them up to make it crank? or will it crank without them? and yes I did replace all my fluids as well.
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Last weekend my number 4 spark plug blew out while on the highway. The truck stayed on long enough for me to get off the highway and pull over before it died. I towed the truck home. Last night I repaired it with a helicoil and replace the spark plug and coil. Now the truck cranks but won't start. I noticed that my theft light flashes fast and doesn't stop after a few seconds or during cranking. I still haven't tested relays or fuses because it was late after the repair. I will be checking those tonight.
I will be reading and taking suggestions and posting my results tonight while I'm working on the truck. I will be checking the fuel pump and PCM relay tonight. I will also try 2 different keys and checking the Inertia switch on the fuel pump to see if that tripped. The truck is a 2001 F-150 Lariat Supercrew with 150k miles on it. 5.4 liter engine.
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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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2002 X w/ V10..
Drove to walmart the other day. Ran Great. Put a new battery in my spare key and tried it but anti-theft light came on. thought maybe battery was in backwards so turned it around and tried again still nothing. So tried original key and would not start. It would crank but not fire. (found a post stating that it was part of the anti-theft system to keep from just trying different keys) I let it sit for a little while and it started.
Drove home put new locking hubs in the front and took it for a drive. Started fine. Wife the next day went to work with it ran great. When she went to leave, it would not start. after about an hour it started for her and drove home with out issue. Next day I went out and it started for me first try. Then it started to just crank and never fire. After a while it started and I was able to start it a couple of times with out a problem then it stopped again. Since then I have not been able to get it to start.
I say I have no spark only cause I have tried to use starting fluid to at least get it to fire but nothing.. It doesn't sound like the fuel pump is kicking in either. Is there something that would shut these systems down that I am over looking..
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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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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 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 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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I just picked up an 02 Supercrew. It came with a “Ford” remote starter. I imagine it was a dealer install for the previous owner. Anyways when I try to use the remote starter, it will crank the engine over but not fire. If I manually start the truck it fires up immediately. How come the remote start wont fire?
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I have a 1997 F350 7.3 with standard xmission. Have not messed with it since Oct of last year. Then it would crank but no start. Now when I turn the key there is no wts or nothing the gauges move, and tach moves when cranking, but nothing else.
The cam and crank pos sensors have been changed. The high pressure sensors changed. Now when I hook it to the AE it says cannot connect to truck. Where I need to start? Have checked all fuses that I know about.
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