Mitsubishi - Diamante :: 1994 - Hard To Start And Idles Real Rough?
Jul 31, 2011
i have a 1994 mitsubishi diamante 3.0 sohc hard to start and idles real rough. it has new plugs,wires,cap,rotor button,fuel filter,and air filter.fuel pressure is between 45 and 50psi which is good i have good compression on all cylinders timing belt is good and i am getting spark to all plugs. with the car running i pull the plug wires off and cylinders 1 3 5 makes a difference but 2 4 6 their is no change.the car was setting for two years.it dose have new gas.the check engine light is not on and has no codes.
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I have a 95 Mitsubishi diamante es 3.0 sohc auto trans. it idles rough i have replaced plugs wires cap rotor button air filter and fuel filter. checked the timming belt ok checked the fuel pressure it is 40 psi the book calls for 38 psi. if i rev it up to 2000 rpm's it smoothes out.
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I have a 94 Oldsmobile Cutlass Ciera, (3.1L V6 GM3100 engine). When I start the engine it idles very rough and usually stalls if I put it in gear. Eventually once it warms up I can drive it, but when I do drive it's extremely sluggish on accelerations and acts like its about to die. At constant speeds it runs mostly ok. We figured it was a vacuum leak, but we've tried every test we can think of to find it and talked to a couple mechanics and tried their tests and it passed all of them. Supposing it isn't a vacuum leak, then what it might be?
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I have a 2008 2.4L Sonata GLS with 96K mi. It is hard to start and idles rough. I cleaned some components and changed spark plugs. I disconnected the negative battery cable to see if it would reset and relearn settings. Took a 15 mi drive and read codes and P0016 was pending, it was still idling rough and acceleration was still under par. I then cleared the code. I purchased a new cam sensor and compared the Ohm readings between the old and new Cam position sensor. The Ohm readings were different by 50% so I assumed the old was indeed bad.
I installed the new sensor, repeated battery disconnect for 10 min, then restarted engine. It was still idling rough (maybe a little better) so I rechecked for codes. P0016 was still a pending code. I cleared the code and P0016 cam right back. The battery is good (no charging issues), timing chain is original (no noise). Is there a way to test the crank position sensor before buying a new one? I've also seen in posts the Oil Control Valve (OCV) affects timing and seems to be a problem for these vehicles, however I have not received that code (P0011). I can limp it to work but will have to take it in if I cannot solve this soon. If it ends up being a timing chain problem what ballpark price should I expect to pay to have it done.
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After sitting engine cranks longer than it usually did before it starts. idles a little rough. engine light comes on after it been running about 30 sec for 1 min. after that seems to run fine.check codes po446 and p1633 always come up. if you let sit a bit with key on starts right up.replaced gas cap checked evap lines, and changed filter no luck. Did notice with lines off evap solenoid key off or on i can blow through it. that doesn't sound right.
Checked fuel pressure. key on jumps to 90psi then falls to 55psi and stays. turn off key and leaked off 10psi in 5 min.start engine while watching gauge does the same as when the key on except it falls to 30 to 35 psi and bounces between them. i think this is way low. What is the correct pressure? Shut off engine and drops to 20 in 5 min. Next I plugged line on test tee going to fuel rail and tested same results as key on. the convinced fuel pump was bad since regulator and check is there. replaced pump. problem still there.
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I have a 1987 automatic Nissan Sentra XE- two barrel carburetor, mileage 212,880. The car has one major problem that is going to get me hit driving it in rush hour. Most mechanics will not touch the car due to being carburetor.
Let me explain: the car idles real rough at times, hesitates at stop signs and red lights, about stalls out on me when I press the gas pedal to go or when I start to make a left or right turn. However, other times the car has little to no hesitation and idles perfectly. I have not been able to come up with a good a pattern with this problem.
I have replaced, fuel pump & filter, spark plug wires, coil, distributor, ecu computer, ran sea foam through the fuel system and have replaced many vacuum hoses.
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Two mechanics have told me that I need the valve cover gasket in my car replaced. I have all of the classic signs of needing one--the smoke coming from under the hood, the drops of oil on the pavement after the car is parked for a few minutes, etc. The problem is that I won't have the money until around Memorial Day. I drive about 300 miles a week. How desperate a repair is this, and what are the signs that I need to have it fixed immediately?
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I have a 2003 Mitsubishi Diamante that I have owned since 2008 purchased it with 60,000 miles on it. Currently has 131,000 miles. I have always kept my car in good running condition and performed all of the scheduled maintenance per the owners manual. Last month I noticed a slight cold knock on the right side of the engine that would go away when the engine warmed up. I checked the oil and noticed that it was a little bit low (maybe half a cm below the lower threshold on the dip stick). I added oil and continued to drive it, still knocking.
Bought some sea foam thinking it was the lifters and sprayed a can in the intake and poured some in the oil. Then changed oil with 5w-30 synthetic, have been driving it for about 500 miles now and the cold knock seems to be getting worse and I can faintly smell burning oil when it is idling as I let it warm up before driving off. By the time I get to work the knock is essentially gone. My oil levels have been fine... My question is, should I be explaining to my wife and fiscally responsible self, that I need to be looking for a new (read used) truck sooner than I had initially planned? Or, is this something that can/should be addressed or just drive it until it gives out...
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My car makes a ticking noise as soon as I turn the key to the 'on' position. The ticking continues once the engine begins running and stops shortly afterward (maybe 10 - 15 seconds). I'll attach a video of the ticking after the car is already running. I've checked the service light. It is the catalytic converter. I'm pretty sure this is a separate problem, but am not sure what is causing it.
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I have a 2002 Mitsubishi Diamante LS. I know I know, but I am a poor student (emphasizing poor), and this car is paid off. Anyway, A couple months ago I drove through a puddle, water splashed up into the engine area and my car died. I was able to start it an hour later (after it dried out, I guess) Since then, there have been a couple times that it wouldn't start right away, it took a good 20 minutes for the car to start after the initial try, both of these times have been after a heavy rain. And now, occasionally, I smell a slight electric burning odor. I replaced the battery after the "driving through the puddle" incident. I just hit 80,000 miles. Obviously there is one or more issues I need to deal with.
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2002 Diamante, Passenger side seatbelt became stuck and started smoking after the door was "slammed" shut. Need to know if this can be fixed or am I going to have to ride in the back seat?
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My 94 850 turbo wagon starts rough and idles very high. the rpms dont come down. After turning car off, wont restart again unless I let in sit for a while.
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I am currently working on a 97 ranger with a 4cyl and 5 speed. its having some idle issues that i cant seem to pin point, you can start it and it will idle rough then when you rev it up it chugs real hard then dies. used my scan tool and all the sensors are good, fuel pressure is good, good compression, all 8 plugs are firing good and no codes. The other deal that has me a little confused is when I unhook the hose that runs from the air intake tube to the valve cover, I get a lot of vacuum at that port on the valve cover that the hose hooks to. Also when I plug it and pull the dipstick, I get vacuum at the dipstick tube. never seen this before but at the same time I've only messed with very few of these trucks so I don't know whats normal.
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I just replaced the water pump and put it all back together, now it won't run well enough to drive. Checked vacuum system, all sensor connections, hoses, gas cap, changed fuel filter, I can hear the fuel pump kick in, reset system with battery disconnected and have looked at everything I can think of so far.
Now - starts fine, idles about 10 seconds and then begins to idle rough and dies. If I use the throttle I can often keep the idle up, but then backfires or acts like no fuel and again dies. Used fuel cleaner and made sure there was plenty fuel in tank.
I am looking at replacing sensors at this point but which one first?? They get a bit expensive real quick.
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I have a huge problem. My 94 ranger 2.3L 5 speed manual transmission, has problems with idoling while it's cold, has no power going uphill and stalls when I slow down to stop. This is all after putting a new motor in. The old one was running ok with 310,000 but lagging bad. I figured with the driving I do, a new motor wouldn't be a bad thing. Boy, was I wrong. It has been a nightmare. But once the truck is up to operating temperature, it runs so smooth you wouldn't think there was a problem. But let it cool off, restart, and boom! There it is. We have changed so many parts and sensors with absolutely no change to the original problem. It's very frustrating. I just can't let this problem win. I will figure it out.
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I have a 96 aurora that has been giving me alot of problems. It started with the car being real hard to start and very sluggish upon acceleration. I had an engine code of 0300 (multiple cylinder misfire) I had a full tune up as well as an intake manifold gasket done. This seemed to fix the problem for a short time. The problem then started again. this time i was told that it was a fuel pump so i went ahead and changed that as well. Again this fixed the problems for a short time. Now i am having the same problem again. I now have 2 engine codes 0300 as well as 0151(bank 1 sensor 2 o2 sensor) This started after it rained and i notice the problem always seems to be a little worse when its wet out. Also the car is really only hard to start when it has sat for awhile. m If i drive it and come back 5 minutes later it will start right up though it still idels really rough and has no acceleration. Can the o2 sensor be causing the misfires and if so will that make it hard to start. Also if i changed the fuel pressure regulator about a year ago.
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My 99 250, 7.3 is having some strange issues as of lately. When I start it in the morning, when the engine has fully cooled down, it starts right up, then it throws the "wait to start light" runs real rough and just shuts off. Run the glow plugs a few times, start it up and it will do the same thing for maximum 30 minutes, then all the sudden I start it and it runs fine. I've replaced the fuel pump, cleaned the fuel bowl, new fuel filter, I just don't know where my problem could be. It doesn't make sense. But once I get it running and it warms up, runs fine all day. Go to bed, wake up, has problems again.
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My 302 runs pretty good when all warmed up. It has some cold start issues every now and then, but is easily dealt with. My question is how to best "tune" the carb. It's a 600 cfm 4150/60 style Holley single pump, vac secondaries and electric choke. About as basic as you can get. I think I have the fuel level set correctly. I also think I have the "idle mixture" set right. I used a vacuum gauge and moved back and forth between screws till I got the highest vacuum. Is there a better way than that? I have the idle set correctly. the fast idle is a little high, but I can fix that.
Now, my real question is how to fix the hiccup and stumble I get many times when I step into it pretty good. I assume that this is the point the carb is going from idle circuit to main circuit. It stumbles when I get on it real hard from a standing start. I can roll slowly and step into it and it stumbles as well. I also like to blip the throttle when I down shift (it has a manual tranny by the way), and many times I'll blip it and get nothing. Now, it runs fine after the stumble all through the rpm range. That's the only time it stumbles. so, do I need more accel. pump shot?? To compensate on the transfer of circuits.
I also notice when I on it real hard, during the shift right when I jump on it, under the heaviest load, I hear a bit of spark knock. It's not running hot, and the timing is good. Do I need a bit bigger jets? I'm thinking it's going a bit lead during that time, but I don't have any real way to measure it.
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1990 Volvo 760 4 cyl. Turbo. Drove the car to work, everything fine. Got off work, car wouldn't start. Cranked but wouldn't start. It was getting spark. Changed the fuel filter, it ran perfect for a month. Drove it to town a month later, shut it off, then trying to start it, would crank and crank eventually start but run real rough. We got it home....barely.
Replaced the fuel filter again. Still wouldn't run right.
Replaced the fuel pressure regulator. Same problem.
Replaced the throttle positioning switch. Same problem. Replaced the air control valve. same problem.
Found out that this car has an on board diagnostic doo hickey.
Found out how to check each sensor and component individually.
All sensors and components are working. Checked both fuel pumps and they are working. If I unplug the air flow sensor and the air control valve sensor, I can start the car using starter fluid and it will idle all day with out missing a lick.If I plug in either one of the sensors, it will kill it immediately.I don’t know what else to do to make this machine run.
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My son had the starter replaced on his 97 Eclipse a couple of months ago and ever since then it seems to be more difficult to start if it has been sitting for a few hours or more. It cranks for 5 or 10 seconds before it catches. If the car is warm or has only sat for an hour or two it starts fine. The battery has been tested and is fine. The fuel filter was replaced about 30k miles ago. He also thinks he has one injector that is performing below par. It idles a tad rough. A friend said to clean or change the air filter and change the fuel filter. He had injector cleaner put in it the other day but that has not solved the starting issue at all yet. Don't know if the injector issue is causing the poor starting or not.
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So the car is a 1999 golf gti with a 2.0 AEG with a 5 speed manual. My brothers car. He has been telling me its been hard starting in the mornings for a couple months, sometimes it dies, sometimes it idles at 500 or lower, he has to rev it up to 1500 to get it to warm up then in kinda stays normal till he cold starts the car again, then does it all over. So he was driving down to my house to leave it with me to look at and on the way over he heres a big bang. has the car towed over here.
Cyl #3 has backed itself out and clearly a serious misfire, threads look fine so I put all new plugs in oem ngk three prong, runs ok still too low 400/600 stalling a couple times. this morning i installed new wires (Bosch)and a coil (aftermarket) and it barely wants to run now, stalled instantly. So I put the old coil back in and it stays running but watching the motor, its clearly misfiring. No codes as of yet and i have no access to vagcom. I've checked the firing order and wire placement on coil like 8 times to make sure it is correct.
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