I have a 02 venture with the 3.4L. No injector pulse when no start. Security system seems to be working properly. Just changed the crank sensor behind balancer and still does the same thing. No trouble codes present. Just not sure what to check next.
View 1 RepliesWas called today to look at a car that wont start its a 92 Chevy lumina euro with the 3.1 v6 automatic 4 door. The car has a new crank sensor recently installed ran well for a while and now has no injector pulse. Checked for spark its good. sprayed starting fluid in the intake and it fired for a second acted like it wanted to run and then died. Checked for fuel at Schroeder valve it has fuel there I don't have a fuel pressure gauge but it sprayed pretty good. I'm not real good with electrical but thought maybe the ICM under the coil packs could be bad I have one off a running engine on my shelf but wanted to see what other people had to say first.
View 4 RepliesMy friend like to get his 1990 740GL back on the road. It starts and dies. Narrowed it down to injector pulse. Noid light is bright the first couple pulses then gets weaker and weaker while cranking to almost nothing. Tried a new radio suppression relay.
Tested the voltage to the positive side of the injector plug and it is full voltage with no drop from battery voltage. I tested the negative side of the injector plug for resistance to pin 19 on the ECU and it was perfect no resistance. I thought that was a pretty good sign the ECU was bad. Replaced it. Jetronic and same exact number. Same exact symptoms. I checked the grounds on the valve cover to firewall and the ground on the intake from the harness.
What else could it be?The ECU I replaced is in the passengers kick panel. Is there another computer for the injectors?
I have a 2005 ford ranger, 4.0 auto, 4x4, 60psi fuel presser, has spark and injector pulse, will try to start if you hold the throttle a little over 3/4 the way down, but will not fire on starting fluid.
View 3 RepliesI got a problem with the injectors there getting power but no pulse, what do i need to do to trace the problem, not sure what to do next!
View 7 RepliesI've got a 2001 4.6 F150, starter spins just fine, but it won't start. Checked all the basics, but it has no spark, and no pulses at the injectors. Is the PCM dead? Wore out the Haynes manual on this one....
View 12 RepliesI have a 2002 BMW 525i with 100k miles. Since I bought it at 30,000 miles there has been a braking problem. If I am applying the brakes and hit a bump or rough pavement, the brakes start to "pulse", they make a "rattley, clattering" kind of sound, and it feels as though they will fail to stop the car. Removing my foot from the brake for a breif moment then reapplying the brake past the bump or rough pavement stops this from happening. Most mechanics claim they can't reproduce it, but I can. At about 50K miles I decided to self diagnosis the problem as a bad sensor or "motor" for the antilocking system. I had it replaced which appeared to resolve the issue for a while. But it is now back. What this may be?
View 3 RepliesI have a 96 GMC Jimmy that will not start..... I have replaced the spider fuel injector and now I get the right fuel pressure. I have random non regular spark that is very week. I have replaced the ignition coil, spark plug wires, spark plugs, distributor cap and rotor, cam sensor, the ECM, and the ignition control module. The crank sensor checked out to be good. I do not know where else to check...
View 7 RepliesMy van ran fine, no problems until yesterday. I started it and it ran for a few minutes then I heard it bog down 2 times ran for a few more minutes fine then stalled. Now it turns over but will not start. I can hear fuel pump, I changed fuel filter.
View 14 RepliesThis car has been great in terms of reliability and no leaks (read not a drop) anywhere.
Today it has decided to quit without notice.
Turn the ignition and it appears to be turning off/on rapidly sort of like maybe it's shorting or something. Dash lights go off/on as this occurs. No attempt to start... as you hold the key on start dash lights the rapid on/oof action described above.
Where I should start troubleshooting this thing??
I just finished replacing the head gaskets and all gaskets above it on my Chevy Venture. When I went to start the vehicle the first time nothing happens. The dashlights come on, but when I turn the key to start nothing happens. No clicking, no nothing. I have tested the battery...OK. I have tested the starter...OK. I have traced the wiring harness to ensure all wires are plugged in. I have checked all the fuses. I thought maybe its the gear switch so I changed down to 1st and then back up to Park...Nothing. I jiggled while in park..Nothing. Could it be the actual ignition switch? It was fine before this escapade.
View 8 Replies. My "piece of junk" (as my husband refers to it) 2002 Chevy Venture broke down on me last year. It felt and sounded like a tire blew. There were no warning signs. It was very sudden. I had it towed to where I was buying it and they told me the motor was blown because I had let it run out of oil. I knew this wasn't the case (letting it run out of oil) and so I brought it home. My husband discovered the oil pump was not working but before I could afford to put one on to see if this fixed it, it was repo-ed as I had lost my job for no transportation. For about a month, the car lot intended to take the vehicle to auction and then sue me for the rest.
I was finally able to work out an arrangement with them where they held the car until I got my student loan money and paid for it. When I got it back, I expected it to start and to be able to try the oil pump. However, now it will only start when you short out the starter, runs for a second and dies. During these brief seconds, we discovered that the oil pump is pumping oil. I have a theory that while they intended to sell the vehicle, they started to fix it. But why will it only start if the starter is shorted out and then not continue to run? Will a new starter solve this? And could the motor completely blow up in a matter of minutes from the oil pump going out?
Got done with replacing head gaskets and intake gaskets, Van started fine and I backed it out of the garage. Left it running and put down ramps and drove up on them so I could get under and connect the exhaust. Got that done and then got back in it and all it will do is crank and it will not start now. It also has a new cam shaft sensor( wire broke on old one). I can hear the fuel pump when I turn the key. It is like now there is no fire to start it. What could be wrong? What do I check? What causes it to fire? If something was connected wrong, would it have still started and then wont do anything but crank? Got dark on me and started raining so I say tomorrow is another day. I feel it is something simple.
View 4 RepliesI have a 96 ZR2 4.3L VIN W engine. original problem: rough idle, ran pretty good on highway, chk engine lite on, error code P300 random misfire. Just in general maint. I replaced fuel filter first. After replacing injector spider now engine will not start.
View 6 Repliesi have a 1991 s10 2.5 liter that will not start. i have spark, and fuel to the injector but nothing from the injector. how do i determine if the injector is bad or something is not telling it to spray?
View 1 RepliesI have working on this one for a while ( sick wife keeping out of garage for some time) Truck fires up in the morning when cold then refuses to start when warm. Of course HPOP leak. HPOP was replaced 5k miles ago. Now today when I drove with AE connected truck all of sudden started to run rough on the highway. I pulled DTC P0279 low circuit for injector 7. My question is can the leak be at injector 7 on the oil rail? Maybe cracked injector? Waiting for the motor to cool so I can do pop off valve cover . BTW early 04 .
View 13 RepliesMy car does not start (cranks only) after I clean the fuel injector and intake manifold.
so I check the spark with tester and it is fine.then I check the fuel pressure with tester and the pressure shoots to over 42 psi without starting (normal between 38 and 46 psi) and slowly drops to 10 psi. I install fuel injector (FI) with new o-ring and gasket and there is no leakage aroung them. the fuel pressure regulator is ok. I got one from junk yard and the test show the same.
I notice there is some gas inside TB and only way to leak the gas is the FI body valve. I took all FI out and notice #2 and #3 are wet on the FI nozzle tip and use small string to push air through and can see some fluid coming out from the nozzle tip.
I thought I clean it well and do not know if this can be fixed by more cleaning. the resistance is all the same at 12.6 ohms under room temp at night in north CA.
I have a hard starting condition after warm up. It starts up fine when it is cold.After running diagnostics and coming up with no error codes, I noticed that I smell raw fuel after the car was warmed up and sitting for about 15 minutes. I believe this is the cause of the hard starting condition after warm up.
How do I test the fuel injector for leaking? I think it may be leaking fuel into the throttle body after sitting for a few minutes, causing a rich or flooded condition which makes it difficult to start after it has been warmed up.
1991 Buick Regal, 3800 V6
Having a rough idle on a cold start. After some research and closer inspection of the vehicle, I'm quite certain I have at least one leaking injector that is flooding a cylinder and causing the car to misfire on a cold start. I'm also not at the gas mileage I should be at.
So I'm wondering, is fuel injector replacement as straightforward of a job as it looks? Any major issues I could run into in doing a replacement?
I'm planning on replacing all six injectors (I can get them for $50 each buying online with a discount code), but given that the vehicle is so old am I better off just replacing the faulty ones? I'm assuming pulling the spark plugs and seeing which cylinder is wet will tell me which I need to replace.
And one more question: Is there a way to depressurize the fuel system when I park the car for the night, thus preventing fuel (or most of it) from leaking into the engine until I get this fixed? I've read that just unscrewing the gas cap can depressurize the system.
My nephew has a 2004 F350 that will crank but will not start. It will build oil pressure on the gauge. There is no injector buzz and no communication through OBD2 port. Is the PCM dead?
View 10 Replies2006 6.0 king ranch 189k sct live wire Replaced 1357 injectors and when I crank truck it will crank and sputter for a brief second but will not fully start and continue cranking and doing this over and over. Tried starting for roughly 30 minutes would not budge. Tested icp and ficm both are good. Also replaced batteries, fuel filters, checked all relays and fuses still can't figure it out. Also truck is bulletproofed.
View 6 Replies