new fuel pump installed earlier. still runs great. plenty of gas up to the throttle body (disconnected the fuel line to see). installed new ignition module, new throttle positioning sensor, and swapped out the ECM from another truck that fires up. getting no voltage to the injectors(what voltage should be present anyway?) the truck died out on me on the road, I first thought that I ran out of gas. had to have it towed home. help!!
Not sure on that model what controls the injector pulse, but most vehicles either use the signal from the crankshaft position sensor or a cam position sensor. You should use a LED testlight, (NOT A BULB TESTLIGHT!!) and backprobe the injector terminals (with the other lead of the testlight to ground) while cranking the engine over. If the light flashes on one of the terminals, then you are getting injector pulse, and the fault lies elsewhere. If not, then you will need to replace whatver sensor is used to provide engine position signal on that model. Also, check the wiring to that sensor. Some vehicles have problems with the crankshaft pulley harmonic balancer failing and damaging either the body of the crank position sensor or its wiring.
Posted on Nov 02, 2008
i have an 88 chevy k1500 4x4 it wont start unless i put the gas pedal to the floor and when it does start it misses any help u might be able to give me is much appreciated thank you
too many possibilities without more info..check that carb linkage ok and choke is not stuck...check timing (does it have a labored pattern to cranking rhythm)...one plug/wire or other section of secondary ignition (cap/rotor) could be bad or weak
Posted on Dec 04, 2008
I have a 1988 chevy 1 ton and the ECM fuse keeps blowing out. I put a 1999 gas tank and fuel filter in the truck. the truck ran well for about 25 miles or so, but now the fuse keeps going out. What do I do?
check the wiring to fuel tank something shorting. replace wires to fuel tank.
Posted on Apr 09, 2009
my injectors have no power going to them. i just replaced fuel pump and relay. i have fuel going to my 350 tbi but nothing coming out the injectors.it wont start and i have no power at the injector so i dont know if its the ecm or what
my injectors have no power ging to them. i just replaced fuel pump and relay. i have fuel going to my 350 tbi but nothing coming out the injectors. it wont start and i have no power at the injector so i dont know if its the ecm or what
Posted on Dec 20, 2009
Fuel pump fuse location on an 88 Chevy K1500? The fuel pump is fine but doesn't run through the truck's electrical system. I replaced the fuel pump relay with a new one which didn't solve anything. I was wondering if this relay had a fuse or fuseable link that carried the current to it. I'm opened to suggestions. Thanks!
Good evening Michael.
The fuse you are looking for is behind the plastic cover on the firewall on the right side. It may be a little disguised in a fuse holder. It is very near the battery junction box pins and fuse links. It's a 10 amp fuse and it supplies power to the relay for the fuel pump.
Hope this cures your problem.
Thank you for using FixYa!
Posted on Nov 24, 2009
firing order 1988 chevy 350 my kid changed wires on my truck and mest up
1988 Chevrolet K 1500 P/U 5.0 liter V-8 VIN "H"
Hope helps.
Posted on Oct 29, 2010
I HAVE JUST BOUGHT A GM 5.0LG SGI ENGINE, WITH REAR NUMBERS ON BELL HOUSING # 14093627. but the numbers on the stamp deck in on left side just below head is # V1014TBA . i cant tell if this is a truck engine or a camaro engine. ( will this work in my 88 truck) ? or will it be too weak? thank you for your time
site i use for casting numbers is down at the moment
far as if a camaro motor would work in your truck yes small blocks between trucks and cars the same
there are 2- bolt main blocks
and there are 4-bolt main blocks
2 and 4 bolts are used in cars
and 2 and 4 bolts are used in trucks
main differance between truck motors and car motors are the add ons intake exhaust manifolds
heads the blocks them self are the same
trucks are usally geared lower but that in the tranny and rear end not in the motor
soon as my site comes back up i look up your number for u and give u link to site as well
Posted on Nov 22, 2010
I have a 1988 chevy silverado and the brake light stays on all the time real bright when emergency brake is on but dull when it is off what causes this
check ground wire for rear tail lights left rear on main chasis their is a plug fing the ground
Posted on Feb 16, 2012
need the fuse box diagram for a 1988 chevy cheyenne truck
for the best solution of your problem visit this site
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Posted on Apr 22, 2016
Speedometer works but odometer doesn't
they are spring loaded and mechanical. if a spring wears out or breaks it won't work. you can replace it with another one but the actual miles won't be there or you could go with a digital set.
Posted on Jul 13, 2012
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