89 suburban keeps blowing ecm fuse

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So I hope where both right or there will be Crow for dinner 20amp ECM fuse keeps blowing on my Chevy truck? I have a 1999 Chevy Silverado 4X4 with a 5. Replace it with a new one, tried it again. Identifying and legend fuse box Chevrolet Suburban, Chevrolet Tahoe, GMC Suburban, GMS Yukon 2007-2014. ,. I picked this 1993 4runner up for 500 bucks. I googled my problem and I saw a bunch of stuff about O2 sensors causing the problem but I disconnected them all and it still won't start and blows fuses so I put a small piece of stainless wire in the fuse slot and it gets red hot when I turn the ignition. 20amp ECM fuse keeps blowing on my Chevy truck? I have a 1999 Chevy Silverado 4X4 with a 5. It was fine until I used it to pull a 1998 Chevy 3500 Silverado out of  Aug 7, 2010 I just had an Astro that would blow the ECM B fuse. First there was the 70 Series, which set a new standard for low-cost, h I created an account on this site solely to say THANK YOU!!! I have been debating this mod for a long time, but I had not found an exact answer if the 160amp alternator would fit my 2003. Fuse box diagram. 1L and was running fine, until yesterday i cranked it up and all it did was turn over, and over and over. Either the alternator is bad or it isn't Jul 31, 2009 my ECM fuse kept blowing on mine as well. IMPORTANT: The fuse box illustration and fuse descriptions cover the vehicles in the ‘Applies To:’ box on the right column. You should focus on the tail/marker/park lights as the instrument and back lighting have their own sub-fuse. Any suggestions as to what may be causing this to reoccur? The truck has approximately 140,000 miles on it, the first time I replaced it, it lasted My fuse on my suburban was blowing it ended up being a wire loom that runs in front of the alternator was sagging and melted on the manifold I would replace fuse then if would blow again when it got hot Found it repaired wire and ziptied it up and no more problems So look near the front of passenger side exhaust manifold yes my first post on this forum is a cry for help as i cant find the ecm fuse or fuses on my 97 peterbilt 379 with a 3406e cat. Replacing the fuel pump should correct this problem. We had just recently had the fuel pump replaced so they put a new computer in it. I found a short in the wiring harness near the PCM Fuse keeps blowing. '89 4Runner SR5 - stock Reply With Quote The motor would crank over but would not start. Another cause of an ECM 1 fuse consistently blowing is a fuel pump problem. What I found out is that my ECU Cont 10 amp fuse was burned up, and that it being popped could be causing all of my issues. A blown fuse will usually deactivate the entire system, or at the very least the circuit that it was responsible for powering. Fuel Solenoid 20A Fuse keeps blowing Tuesday (10/12/10:7am), on my way to work, truck unexpectedly died when accelerating from a stop light. So I have a 96 2. I checked the ecu fuse and it was blown. If all OK, install a 5 amp inline fuse before each of these components, then test drive until one of the fuses blows. But a fuel pump shorting is way more common. First time it happened I swapped in a 30 amp fuse. It was really weak, so I bought a new one. Usually five to ten minutes after a cold start. That on blew. The engine will not fire up, so I checked all the fuses and the 15amp fuel injector fuse was blown, so I replaced it and cranked it up again and the exact same thing happens, the same fuse is blown again. Ecm-1 feeds the pcm and positive side of injector so if the all the things you listed above are still disconnected along with the injector body connector removed this time and the fuse still blows then it is the wiring harness. found about 5 wires cooked (the stupid clip that holds the wire conduit failed) about an hour of  Looks like ECM B FUSE powers the fuel pump relay and fuel pump sensor. briansmobile1 56,364 views. i have looked all over the truck for chaifed wires or bad grounds but i cant find anything. 3. If it does disconnect crank sensor, also inspect wires for the injectors or any rub through wires here is a diagram Why does my ecmb fuse keep blowing and shutting down my truck - Answered by a verified Chevy Mechanic ecm-1 fuse keeps blowing, I own a 2000 chevy suburban 5 Ok im not sure if i posted this in the right spot, my truck blew the ecm1 fuse so i was thinking it was the fuel pump so i put a new pump in the truck and its a 99 with the 5. It was suggested to check the items on that circuit - OPS, lift pump. 1990 Suburban ECM-1 fuse blows, again & again :-( as bad and as quick as your blowing the fuse, I'm thinking a dead short and even a 100 amp or 150 amp fuse if The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board > The 1973 - 1991 Blazers, Jimmys, and Suburbans Message Board: 86 s10 blazer keeps blowing ECM B fuse Moved the 2 wires I had previously moved to 2 different locations around the intake manifold. This 1999 Chevrolet Tahoe came in with a complaint that the ECM 1 fuse in the under hood fuse box would blow, which of course causes a no run condition. They let the car run for hours on end but the fuse was fine so they thought they fixed it by just putting a new fuse in. One injector has a blue wire that runs to the ECM, and a red wire that goes to the relay center where the 3A fuse is located. This problem started about 50 miles after having the heater core replaced, so I don't if something got messed up during the replacement or what. You can run a wire straight off the (+) battery terminal to the fan, and if it comes on, then the fan is good, and if they come on when you turn on the AC, then that only leaves two things, either the fuse is bad, or the temperature sensor (switch) is bad, and not telling the ECM to power up the fan/fans. And ECM does not snap a fuse when you turn key to on. After doing a bunch of trouble shooting I noticed that the 15A fuse for EFI was fried. Any suggestions as to what may be causing this to reoccur? The truck has approximately 140,000 miles on it, the first time I replaced it, it lasted 2. 7 vortech No Start with a blown ecm 1 fuse. 1990 Suburban Well I haven't been able to fix the rich problem so I decided I'd take a stab at the lights. I have read other forums and spoke with my dad (mechanic for 39 years) and this is what I've gathered as possibilities so far: 1) fuel pump is going bad 2) oil pressure sensor is bad Found out why ECM 1 fuse keeps blowing. Tahoe & Suburban - 2001 Tahoe - ECM B fuse blowing no start - Need some advice on how to proceed with this problem. 7L 4cyl that keeps blowing the EFI fuse. Well, since it would hardly turn over, I took the starter off and had it tested. Check the wiring to the Electronic Spark Control (ESC) module, the Exhaust Gas Recirculation Valve (EGR) solenoid and the Electronic Control Module (ECM). Tbi distributor problems Gm abs code 68 No running lights on truck Search. Category Howto & Style; Source videos 2003 Astrovan P0102 and P0442 and blown ECM-1 fuse How to fix - Duration: 6:29. 98 K1500 Suburban 6. I disconnected the pump and it still blows the fuse. Drove the truck home and it dies on my street :wall:. The 1992 Chevrolet S-10 Blazer has 1 problems reported for ecm fuse keeps blowing. I have replaced the battery and cable ends and left the battery disconnected for 30 minutes hoping the ECM might reset itself, but that would just be too inexpensive and easy. Used lly ficm. . some sesnor is probalby drawing way to much! 1998 CHEVY PICKUP TRUCK 5. If you off road it could  The ECM 1 is one such computer; it has a fuse is installed to protect the computer from sudden power surges or other component damage -- the fuse will blow  Get free help, tips & support from top experts on ecm fuse keeps blowing related issues. 5 blew the ECM fuse when messing with the glow relay. 1990 Suburban ECM-1 fuse blows, again & again :-( the gages fuse kept blowing because somehow the speedometer wiring got pinched in the transfer case shifter. Car ac condenser fan direction 2003 Chevy Tahoe Alternator Fuse. Keeps blowing fuse I shut the car off and checked my fuses, the 15amp fuse under the passenger side dash was blown so I drove to a nearby auto store and bought a 5 pack of replacements. 0L, and 5. I have access to an ECM, PCM, BCM and TCM from a 2007 Sierra that I can try swapping over modules to help troubleshoot the problem if they are compatible. everyone says they come out of the battery box or in that area all i have coming out of my battery box is postive and negative going to starter. Driving on the highway tuesday morning the truck went dead with no warning. 7 vortec injector spider Only blew about 10 fuses while unplugging and wiggling stuff until I unplugged the Why The ECMB Fuse In The 1990 Suburban V1500 350V8 Keeps Blowing Out ? Looks like ECM B FUSE powers the fuel pump relay and fuel pump sensor. have a 98 chevy suburban it blowing the ecm fuse as soon the ign key is turned two the on position only thing that has been done in last two months was a starter installed checked connections on ecm itself and the starter don't know were to go from here I have a 1991 Gmc sierra k1500 that constantly blows the ecm fuse sometimes as soon as i turn on the key, i pulled the fuel pump relay and its still blows. Another part that is known for failing is the purge valve. Another search and found a thread where a 97 was blowing the ECM-B fuse. I put a new fuse in, then pulled it right out and it was okay. Why does your ecm b fuse keep blowing on my 89 s 10? A circuit that keeps blowing a fuse, is caused by a Short in that circuit, loose connections causing arching, overloaded circuit, or a fuse ECM -1 FUSE BLOWING 11 Answers. In the table below you'll find the fuse location and description of the fuses of the fuse box on 1993 4. does anyone have idea of the problem. My engine fuse (20 amp) keeps blowing for no apparent reason. I checked all my fuses and my EFI fuse keeps blowing out. 98 suburban 5. The bad wiring was found under the throttle body. Average failure mileage is 142,850 miles. Well after i changed the pump it ran perfect for a week and now its blowing the fuse more and more. My car is a 1997 Q45 with the 4. I have a 98 burb with 135K on it I keep popping the eng1 fuse the list of codes i have are p0102 p0141 p0172 p0175 p0340 and p430 i know the 430 is due to my cat for bank coming apart i am in the process of replacing that now. Well, I replaced the fuse and not 20 seconds after I started the car, it popped the fuse again. Thanks I have a 1987 K5 Blazer, and my ECM B fuse is blowing constantly. Any common remedy's to this problem? Thanks for the suggestions. C. 4. I have an '88 Jimmy 4X4 350 that keeps blowing the ECM I fuse when you turn the key. 2nd gen keeps blowing am2 fuse *HELP* So a little background. This is an 89 suburban 4x4 350 TBI. 3L V-8 engine that has twice blown the 20AMP ECM fuse that is located in the junction box under the hood. Newbie here. 0L, 5. Took it to a shop and after a couple days they couldn't figure out the problem. No go. ECM1 Fuse Keeps Blowing. Why does your 1988 gmc keep blowing ecm-ign fuse? The automatic seatbelts on my 89 240sx quit working the control box under the center console is good but the fuse keeps blowing what could Well to me it makes more sence to look for most likely cause> I've seen ECM blow fuse but rare and always is in conjunction with other issues proceeding. 3L, 5. It started and ran fine after I did that, but I went to drive to work this morning and the same thing happened: the truck died and the EFI fuse was blown again. ?) . Glad to help out, Good Luck!!! The bestDMM in ns class just got better. Separated all the Let me know your model ( pick up, suburban, etc. This fuse powers ALL the tail/marker/park lights and instrument and switch back lighting. I am assuming the fuse that is blowing is the PARK LPS fuse, #9, in the instrument panel fuse box. Inspect that branch of the circuit. Either the alternator is bad or it isn't I need help my ECM-B fuse (10 Amp) continues to blow and I need ideas of where to start looking for the short. 5TD <br />bone stock (for now) I think one time my dad's 95 6. Mine (89 Suburban 5. Question about 1996 Suburban Question about 1989 C2500. I had it towed home to work on and found that the ECM-1 fuse keeps blowing every time I turn on the key. The mechanic cant seem to figure out how moister got into the plugs at the ecm. Well, it turns over good but it's blowing fuses. I've read a lot to check the O2 sensor wires for a short, but they looked fine, so I went ahead and replaced the fuel pump. When the fuel pump begins to fail it overheats, causing it to drain more amperage (amp); if the amps exceed the amount of amps the ECM 1 fuse allows, the fuse will blow. And I can help. 7 1/2 ton and recently I keep having a problem with the ecm bat feed fuse blowing. Blew that fuse too. 5 hour trip with no problems. Discussion in 'Stock 1991 - 1994 Explorers' started by mekelly, October 17, 2015. also 2 fixes . Fuses are designed to protect a circuit by "blowing" when too much current is being drawn. The 20A ECM B fuse . l +- %. eRN \XN The Fluke 80TK. Locate fuse and relay. Thankfully, a 5-0 was right behind me when it happened and when I put my flashers on, she flipped her red and blues and helped me push the 4ton beast into the median. I'm watching this post, please be sure to post your solution. Ecm-1 and some others are fed from IGN-A thru the ignition switch. I'm not sure about the ECM 1 fuse blowing but that thing you discovered in the front bumper is most likely the PMD/FSM on a LBZ keeps blowing the 40A IGN A fuse The only think i could find wrong with the truck is i blew a fuse. My truck died on the road and would not restart on day. Hi, I own a 1999 chevy Tahoe with a 5. 7L pickups. That in itself is enough of a clue to me to start looking around the exhaust … Continue reading "1999 Chevrolet Tahoe, ECM 1 Fuse Blows" I changed the fuel pump thinking that was the issue and unfortunately is wasn't. 7 TBI) is blowing so much now I can't make it out of the driveway. 7 gas. I let the suburban sit for about 5 minutes and it started up again. needed a clutch. Try auto zone or a haynes manual and see if there is any info on injector resistance, and coil/ dist resistances etc. After installing a new fuse I tried my windshield wipers, they moved about 1/8", I pulled the fuse and it was blown again Fuse 27 , yellow micro fuse , is known for melting and burning out which is what mine did. The ECM B fuse keeps blowing in my 89 Chevy are 3500 454 one ton dually I've disconnected the ECM replace the fuse and it blew instantly disconnect the electrical to the fuel pump the fuse blew again ECM I fuse keeps blowing in my 1996 1 ton gmc sierra 4x4 with a 454 v8 engine whats causing it For the ECM 1 fuse to open you obviously have a short to ground , start with the injector disconnected and see if ECM 1 fuse still blows. One day at Napa the darn thing wouldnt start and thats when I found the burned out fuse. I decided to check my fuses and sure enough my ECM-1 20A fuse blew. Your resistance on the injector is in spec, so you need to retrace wires. The fuse box is located on the driver side of the dash. The first three times this happened it would only occur when I was in reverse, I would swap the fuse and things would seem to be fine for a while. One innovation leads to another. The FSM indicates that a fuse blowing on the injector circuit is caused by a short-to-ground, which spikes the injector voltage above 2V sustained. Then I put the fuse back in (using a 20A), and turned the ingition to try and start. my chiltons doesn't have that diagram. 2003 Chevy Tahoe Alternator Fuse Warning: Use of undefined constant HTTP_USER_AGENT - assumed 'HTTP_USER_AGENT' (this will throw an Error in a future version of PHP) in /srv/users/mygreenpasture/apps L98 Wiring Harness I created an account on this site solely to say THANK YOU!!! I have been debating this mod for a long time, but I had not found an exact answer if the 160amp alternator would fit my 2003. My 2004 suburban stalled after I passed a car on my way home from a trip. Start checking your wiring at the fuel pump. Tomorrow i am going to try testing the Maf and ignition module and O2 sensors. We change the fuses ALL the time to get it to start. So i decided to google the issue, and yup seems to happen to all 2000 Chevy SUV's Blown ECM fuse - my 2001 suburban keeps blowing an ECM fuse, any ideas what could be causing that × We use cookies to help our site to work, to help us understand how it is used, and to tailor advertising on this and other sites. FAIL!!! Looking at the wiring diagram for you vehicle, I see the fuel pump is circuit it protected by a 10 amp fuse. I replaced it and it would keep blowing them when i turned the key to on. 7 engine. 7L TBI equipped 4. Sometimes it works and sometimes it doesn't. I changed the ecm module and it still blows, unhooked the oil pressure switch and it still blows. At that point, as long as I didn't go into the overdrive passing gear, it seemed to do fine. Then it just shut completely down right while I was driving. That one blew too. The ECM B fuse keeps blowing in my 89 Chevy are 3500 454 one ton dually I've disconnected the ECM replace the fuse and it blew instantly disconnect the electrical to the fuel pump the fuse blew again Why does my ecmb fuse keep blowing and shutting down my truck - Answered by a verified Chevy Mechanic ecm-1 fuse keeps blowing, I own a 2000 chevy suburban 5 My 99 suburban Ecm-1 fuse keep blowing - mmmmmm try checking all grounds are tight and clean. I did get it to start with a 15A fuse rather than the stock 10A and shut it off right away. Because the anti-Lock fuse and relays are what power the entire ABS system, they are very important electrical components to any vehicle. The mechanic found moister in the plugs at the ecm and corrosion in the original fuse holders. Fuel pump does not prime thus vehicle does not start. Sure enough the EFI fuse was blown again. Some guy that my dad works with said the ECM fuse keep blowing on him and he replaced the ignition moduale or some thing I have a 1989 Chevy Suburban 5. Used lly ficm Honda Crv Outside Temperature Sensor Not Working Tbi distributor problems No running lights on truck Gm abs code 68 Honda Crv Outside Temperature Sensor Not Working The wire inside of the fuse should also be visibly split when the fuse is blown. Battery drains by itself when vehicle is parked (parasitic draw) we pulled the fuse to the radio and it's fine now. Solved The PCM fuse keeps blowing out. Installed new and cranked right up. I installed the fuse and a new purge valve and she is running fine for now. 7 KEEPS BLOWING ECM PCM FUSE Today I had a 1998 chevy 2500 pickup truck 5. 97 chevy ecm 1 fuse keeps popping. I took 1. I stuck a fresh battery on it and it would hardly turn over. The fuel pump is then switched on and off via a relay that is controlled by the engine control module (ECM). So I've been wiring to add an overhead console with my dome light, and now my CTSY fuse keeps blowing, does anyone have a wiring diagram for the CTSY fuse so I can trace it and find my problem. We took it to a shop and they said the fuel pump and computer both run off this fuse. I initialy thought it was the fuel pump but noticed the blown 20 amp ECM - 1 PCM Fuse keeps blowing. it did the same thing so i pulled the 60A one from the ABS just to get me home. His theory is moister was getting into the wiring and causing enough resistance and voltage drop to turn off the ecm (As you all know it takes 10. 5 volts to fire the N14). Kept blowing fuses when cranking - GP light for less than a second and then fuse blown. Instituto. I've checked the fuses on the divers door side fuse panel both 12 volt dash cigarette lighter port problems - Chevy and GMC Duramax Diesel Forum cigarette lighter fuse keeps blowing on me Hi guys I recently did a trip from LA to San Jose and in the middle of the long a$$ drive, I noticed that my cigarette lighter no longer gave power to my Win a Kayak . Why does your ecm b fuse keep blowing on my 89 s 10? A circuit that keeps blowing a fuse, is caused by a Short in that circuit, loose connections causing arching, overloaded circuit, or a fuse 1991 Chevy Suburban V8 Four Wheel Drive Automatic up until about a month ago the truck ran smoothly! Then it started blowing fuses and dying right in the middle of driving down the road! Its a complete loss of power. It seems the ECM B fuse has quite a few possible reasons that it will blow and I don't see any single cause being more common. i bought a new one and it fixed all my problems unitll 2 days later. 89 suburban keeps blowing ecm fuse

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