Isuzu - Trooper :: Occasional Engine Miss And Failure To Start
Mar 10, 2011
My old Trooper, which is painted like the Merry Prankster bus, has had a series of electrical/ignition problems. It began earlier this winter with an occasional engine miss and also occasional a failure to start. My mechanic has replaced the distributor, the coil and the ignition control module (twice). Each time it runs fine for a couple of days and then starts acting up again. It is currently sitting in my driveway with zero spark coming out of the coil. The year of my Trooper is 1990.
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I have cleaned the fuel injectors, put in new spark plugs and new spark plug wires. What else I can do. The only time it starts easily is when it's very hot. If I leave it off for just 5 minutes, it will start up quickly. And a few times, when it is dead cold it will start on the first turn. All other times I have to crank it for what seems like minutes. I'm killing batteries and starters on a regular basis.
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I have a 1993 Isuzu Trooper. I put too much oil in the other day, about half a quart, and wanted to drain it out of the bottom. I loosened the drain plug like normal and it wouldn't come out at all, just spun in the same place. Tried retightening the plug and it wouldn't tighten either. It was tight when I started. It would get tight for a second and then get loose again, feeling like a stripped thread. Oil is leaking out from around the plug. I cannot twist the plug with my fingers, so its not super loose but it's loose enough to leak oil. Is this a easy fix for an oversized plug or will the entire oil pan have to be replaced?
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Know that squealing sound a belt makes when it's loose and needs to be replaced? Well what is it when you hear that sound, but you know it's not a belt? It happens intermittently, usually when the car is cold...and it's been happening more and more lately...like whatever the problem is, is getting worse
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I have a 1998 isuzu trooper. it is over heating and there is air being put into the cooling system. there is a lost of fluid but only the same amount each each time and i dnt knw where too. i replaced water pump had radiator serviced and it flowing at the right flow for truck. it still over heated. i tried chemical called blue devil it worked for two days then failed it is freezing cold here and no garage but do have all tools.
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The problem I'm having is it starts fine in the morning but when I shut it off it it takes about an hour to start back up ..
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I own a 2001 isuzi trooper, the water pipe has been broken a couple times, so the radiator has been leaking so my car overheats. But I fixed it a couple of months ago, yet after I fixed it the car kept going through the water/coolant extremely fast and was overheating unless i put water in it every other day.
Yet, a couple of days ago, I was driving home, and i heard a bubbling noise, ignoring it i kept driving only to have complete loss of my accelerator and had my car rolling along the highway unable to accelerate. (And the last time I put water in the radiator was 10 days ago) now my car won't even turn on, and it sounds like it is having a very difficult time when I try the ignition. plus when I do try to turn the engine on, coolant is coming out of my exhaust pipe.
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Rebuilt engine, installed, started right up but had loud tic and started leaking oil. Pulled engine, fixed leak, inspected heads, re-installed, turns over but doesn't run. Weird thing is, first time I try to start it each evening it runs for about a second and then dies and then won't try to run again till the next day. This has happened 5 days in a row. I sprayed starter fluid in intake, no luck. I borrowed scan tool, no codes set just won't start.
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Recently, my 1988 Isuzu Trooper began dying at high elevations (above 7,500 feet). I have had the car for ~7years and have never had this problem. That is, in the past, i've been able to drive it up to 9,300 feet with no problem. Could this be vapor lock? If so, why would vapor lock all of sudden start happening? If not vapor lock, what could it be?
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My 1995 Isuzu Rodeo began stalling when braked/stopped. The car would continue running only if the gas pedal was lightly pushed, keeping the flow going. I treated it with Seafoam and water remover and the problem went away for week. Now it will stall, then refuse to start for a period of time. When attempting to start the Rodeo a loud 'strangled' sound is sometimes heard, then nothing. Try again a few minutes later and the car starts and the ride home over the next mile is smooth. My untrained guess points to a bad starter. I also believe there were two problems at the same time, one being junk in the fuel line, perhaps a loose battery connection as a contributor, then a starter problem.
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Got a strange one here. 1995 Buick Park Avenue, supercharged 3800, 159K miles... an older car, but an unmolested one. A little over a week ago I began to notice an occasional miss when cruising along at highway speeds, along with a slightly rougher idle. Both the fuel filter and the plugs/wires predated my ownership of the car (a little more than 6 months); so seeing no obvious culprit, I replaced them and hoped for improvement.
Unfortunately, neither had any impact. The missing continued to become more noticeable. It was never present under acceleration. Most of it was like a split-second long version of "bucking" that could be observed while cruising at lower (<2000) RPMs. It was also very noticeable at idle. Eventually a code was set: P0341, camshaft sensor issue. If the story had ended there, it would have been just another night in the garage. But it didn't.
As I was noticing the aforementioned symptom increase, I also noticed my voltmeter would occasionally "twitch" in the downward direction. Eventually I had an incident where I came to a stoplight... transmission in Drive, foot on brake, gauge dropped to around 10-11v. It returned to 14v momentarily, but dropped back down, held there for several seconds, returned, etc. No particular rhyme or rhythm. Of course my first guess was that the alternator was failing; a separate problem from the other.
I checked all the relevant connections (at the battery, at the alternator, etc), and cleaned them for good measure. All were tight, relatively clean, and the cables showed no resistance on the ohmmeter. It happened that I had another correct alternator on hand (used/working pull), so I swapped it in. No change. I reinstalled the original and was back where I started.
On my most recent drive, I noticed both issues had become very noticeable. The drop in voltage was happening at nearly every stop, and the missing was happening a few times per minute while coasting along. There seemed to be some correlation between the missing and voltage fluctuating, but it wasn't absolute.
I decided to attack the voltage issue again. Re-checked all the cables; same result as before (all OK). Looked all over the car for possible bad grounds, loose connections, or other visible problems, but found none. My next thought was to run a jumper from B+ to the voltage regulator's Sense input (have seen issues there on more than a few older vehicles) - but after reading that this car uses the PCM as the voltage regulator, I didn't proceed.
Just to be certain I'm going to have the alternator tested by the local auto parts store. But I suspect it'll pass.
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165k miles 4x4 6 speed, bone stock unmolested
Slowly progressing problem over 6 months. Occasional miss at highway speeds uphill has progressed to bucking and jerking during even gentle acceleration attempts.
I hadn't got my cam sensor recall done but no change after that procedure completed yesterday. Oil recently changed as well.
I have a torque pro but it never finds any fault codes even though 'service engine' light comes on sporadically. I'm not sure I'm operating it properly but it at least reads rpm when its running.
I'm contemplating the hutch mod but I'd like to have an official diagnosis beforehand if its possible in my case.
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I have a 2007 Honda Civic with about 40000 miles on it. About a year ago, I'd notice a problem with the a/c occasionally stopping, but at other times I'd turn on the car and it would work. Sometimes it would not work when I started the car but after I'd driven for a while it would kick on. But, for the past 4 months or so, it has stopped coming on completely. What could this be? And... what sort of figure am I looking at to get this repaired?
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What is wrong with my Passat: once a week my car fails to start. When clutch is pressed and ignition key is turned I can hear relay under dash is clicking and nothing happening. It does not sound to me as starter (I hope). After a few seconds and few attempts car starts normally. I checked which relay is clicking and it was Relay # 53 (starting interlock relay), which linked to a clutch switch. Replaced this relay and after a week problem repeated.
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Engine will start and run but will miss in a pull and die sometimes but will start back, we hooked it to a scanner and it said (intake wiring) it wasn't a dealer hook up just a gas station garage, we have already done plugs and wires.
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My truck's been having an occasional hard start, meaning the engine cranks strong but it fails to catch and then sputters. The 2nd start attempt usually fires up with no issues and then runs perfectly otherwise.
MPG's haven't changed, fuel filter was changed 15K ago. Air filter is clean. Plugs were changed about 10K ago. I always use Shell/Chevron gas. MAF sensor looked clean when I took it out so I didn't do anything to it.
This is starting to happen more frequently, maybe once every few weeks and I get a feeling it's the start of something. I've found myself waiting a few seconds for the fuel pressure gauge to come up before turning the key to start reliably. In the past, I could simply flick the key and it fires up the first time.
I see posts talking about the fuel pump module above the spare tire. What are symptoms of that going bad? Any pending codes that might be stored?
I'm about to get myself a scanner since I need one sooner or later. Which specific PID's to check while debugging this?
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1.8 had recent coil pack problems? I recently had a coil pack fail in very hot weather 2 weeks ago. This week during another heat wave I believe the coil was again causing the engine to start missing. I know about VW's past reliability problems concerning coil packs and am now concerned that this may be surfacing again.
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I've been working with a friend who has a problem with his 96 Isuzu Hombre 2.2L (same as S10). Runs fine, then intermittently cuts off. He pulls to the side of the road, and tries to start it. It cranks but won't fire. He waits about 10 minutes or so, then he starts it up just fine. No computer codes.
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I have a 99 Isuzu Rodeo V6 - Auto Trans. The car operates fine, however when driving long distances - say 150 - 200 miles if I stop and try to restart within 5 minutes it will not start. It will attempt a start but choke out - and sometimes not even that - it just has the low click of the starter. Temp. gauge registers normal - not sure if it's an overheating issue - but nothing indicates that. Car will eventually restart (or at least has to date) after a 15-20 minute rest period. I had some issues early last year - had the EGR valve replaced, thought that had solved it..
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About two months ago I noticed a transmission-y rattle coming from my 1982 Isuzu P'up (diesel). The rattle wouldn't start right away, you had to drive the truck for 4 or 5 miles before it would kick in. And it wasn't always there, it would sort of go away and come back intermittently, although this pattern repeated every time I drove the car. The noise was present in every gear, including 4th.
I took it to a transmission guy, who claimed to have heard it coming from the engine, not the transmission, while it was up on the lift. Later I took it to another mechanic, who insisted it was in fact the transmission, and that the transmission guy didnt know what he was talking about.
Stuck in a contradictory limbo, I drove the car around for a few days, trying to make notes on the problem.
And then the car had an electrical problem, which kept me from driving it for about 2 weeks. The guy who did the electrical doesn't speak english very well, but as I understand it he fixed something that recharges the glow plugs? Or recharges the battery? Not sure.
But here's the thing: The noise is gone. I've been driving the car for two weeks now, taken a longish (80 miles round trip) freeway drive and I keep waiting for it to come back. But no noise! So what's going on??? Where did my noise go?
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I am having to replace my 94 isuzu rodeo engine because after my oil was changed by a shop, the oil pan plug came out on the freeway and the engine seized up.
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