Recent content by tilliepeople

After checking and rechecking pretty much everything I broke down and ordered an ECM. I watched a millionish videos and read a dozen books and did all the tests that I could do with the equipment I have. Some checks indicated a short or open circuits while others were inconclusive or drifted...

I was thinking about that as I was writing it. Guess I should have said "Never go below manufacturers recommendations" Thanks for keeping me on my toes.

Running a low psi will tend to give a better ride as tires are used as part of the suspension on most vehicles. The backside to that is lower pressure usually means lower tread life. But considering that most of us do not put 10 or 15 thousand miles a year on our MH the chances of wearing the...

Can anyone help on this one? I have a 1989 wiring diagrams My question is that it makes reference to what I believe is different engines I think I should be looking at (L05 or L19) but there are others that it could be. It's a good read but I want to make sure that I am looking at the correct...

According to the Haynes book I have the the crankshaft and camshaft sensors were only used in 96-2000 chevys. I also note on pre 88 models the crank signal come from the starter solenoid which makes "old crows comment seem quite reasonable. Also having a tough time finding a pinout for a 90 7.4(454)

I got a really strange question I have a fuse marked (crank) but according to the books I have a 1990 does not have a crank sensor (96 0r newer only). What am I missing

The good news is the injectors work fine. Jumped then, filled up the bowls and started it up. Ran for a whole 5 seconds. started to follow pink/blk wire led me straight to EGR.OHM check gave no reading but that could be right as it does not turn on until running (vacuum). OR it could mean it's...

Your pretty close to right I got a meter,testlight and a couple of jumpers. Can I put 12 volts on the injectors or will that just fry them. If I pull the ECM out where I can get at it i may be able to figure out which pin to check or jump. The schematic shows the injectors go from the ECM to the...

The news today is not too good. I disconnected the fuel line at the carb and sure enough when i turned the key I did have fuel. That means the injectors are not firing. I really don't know the procedure for testing them. I do not have a Noid light and I tried the 9-volt battery trick with no...

Your right. I am not nearly ready to call for a new ECM.I will start at the fuel pump relay since everything else seem to work and work my way from there. I know the relay energizes because that is how we eventually found it (listened to the clicking) but that does mean it works.

Finally found the fuel pump relay That thing is so buried up under the dash and behind wire harnesses I'm going to do some serious swearing to get it out to even check it. But at least I know where it's at and that's a big start.

I have a 1990 chieftain on a chevy P30 chassis 7.4L. I hooked the battery up backwards and now it will not start. Originally it was blowing the ecm/batt fuse but after some wiggle and jiggle every thing seems to power up except the crank sensor(no power at fuse box) and fuel pump (12 volts at...

I just love having my full dresser when camping ,but it is a pain. I have to wait for someone to visit and catch a ride home to pick it up then get someone to drive me back to bring it home. Considered a 1000# power lift  but after checking it out I found that on a gas coach there is a frame cut...

I guess that makes for an easy solution. I  could get a 25 year old used one or a brand new updated version for less than $50 more. I will look into the 9245 unit Thanks Bill

The converter went out on my 90 chieftain .I found a magnetek tu750 -2 and a tu730-2  . My question is would either make an acceptable replacement for the 740