No spark

[bobsho49]

I need help as I am a new sho owner, and I just had the 100 k done, changed the water pump, the cps and the timing belt, and my baby did start and run for about 45 minutes and the mechanic squeezed the upper rad hose and she died and now it gets no spark at all to the plugs, he put in another DIS module and still no start, put in a new coil and still did not start, we are stumped, could use the forum's help as it was running great before all of this, all i did was change the thermostat, yes I did use one with a jiggle valve, I burped her too, but every time I touched the upper rad hose she would stall too, but she ran for about a week going back and forth too work. Think it might be the camshaft sensor or the PCM

 

[mtg74]

crank sensor

its very possible it is the sensor but don't quote me on that i'm having similar problems with cranking also. have gas, spark, and the fuel pump is working from what i can hear so thats my next move when i can make it is to change that sensor and so from there.

 

[rubydist]

there is a very good chance that the crank position sensor is dead. it might not have been tightened properly or it might have had an infant failure.

what codes are there?

 

[bobsho49]

the mechanic never checked the codes for my car as he was just replacing my water pump He keeps swearing that it is not the cps as I did watch him replace it and put it on, what is an infant failure?

Could it have broken when it was running? Wow you have a lot of SHo's

 

[luigisho]

Check your codes. It sounds like sensor failure but you need to be more methodical than slapping random parts at it. Those were good guesses at parts but I would look at the sensor and timing since those are the things that were worked on before it stopped running. Maybe the belt skipped a few teeth and it's too far out of time. Retrace your steps if it was running before the work was done to it.

 

[bobsho49]

I plan too make him retrace his work because the more I think of it he was rushing too get it done and he might have missed something such as installing the cps wrong and not shiming it the right away and the timing might be off as the yamaha engine will not start or run if it is just a bit off on the cams and the crank, I thank you for your help, After we get it running I plan on going too school and learning how too repair it myself as my mechanic has a lack of SHO knowledge

Can Anybody out there help me retrieve the codes on monday?

 

[rubydist]

follow these instructions carefully:
http://www.shotimes.com/php-bin/modules.php?op=modload&name=News&file=article&mode=thread&order=0&thold=0&sid=83

 

[shocar]

It might be as simple as a bad ground, with all the work done on the passenger side of the engine he may have worked the grounds lose. Check the connection from the negative side of the battery to the strut tower/ side wall and then check the ground that connect the plenum to the fire wall to the left of the DIS between the motor and the fire wall. He took it off for some reason, he may have forgot to attach it back on. If either of those ground fail you can lose spark

 

[shocar]

Also, make sure the cross over intake that the DIS is on is tight. If it's not tight, no ground, no spark

 

[bobsho49]

Thanks shocar will check today, as I have told him I want my car running, and so does he, as he has not gotten paid for the work done so far. I think he missed something and is afraid too retrace his work as this is his first time working on a Sho, I should have done it myself I could have done no worse, from know on I will work on my own Sho like I did on my other cars, thought this was too much, but having looked on the forum's I would have taken my time and fixxed it right.

 

[itwonder]

Because you see a correlation between squeezing the upper radiator hose and the car stalling (with no spark), perhaps the water pump is leaking. It is possible one of its o-rings is not properly installed, causing a leak. Squeezing the hose might cause an extra heavy dribble of coolant which could run down on the CPS and cause it to stop working. A cooling system pressure test is in order.

 

[bobsho49]

Thanks will see if he leaked tested it, I am not sure if he did test it for leaks, as when I installed my thermostat and I did squeeze the upper rad hose she died on me, but she always restarted, and she did run for about a week and a half before she totally died, but she did restart for him when he had too move it into the bay,
Question? when you do the water pump do you intstall the whole unit as it was a new one, he just installed the upper part, when I did check the water pump, it spun with no problem and the bearing felt tight, not loose, perplex I would say, HELP ME!!!!!!!!

 

[oneqwicksho]

Squeezed the hose, put extra pressure on water pump, leaked coolant on crank sensor and shut car off.

 

[bobsho49]

Yes thats what happened, but ? do you replace the whole water pump? any sho members wanna help me with that question?

I bought a brand new one so once again should have my mechanic replace the whole pump. not the piece with the impellar on it but the back piece too which goes on too the engine itself, in other words replace the whole unit, Thanks for all your help gentleman
Bob

 

[Endri_SHO]

sound like maybe the timing belt has skipped, is missaligned in the timing sprockets, or the dis module is screwed up probably. but most likely is in the timing and sensor location. thermostat got nothing to do with no spark in the wires. i mean thats the way i look at it . seems like your guy didnt know what he was doing. maybe he thought he was working in a honda accord vtec as he was looking at that yamaha engine ..
dont pay him unless he gets your car running and warranties that wont die on you for at least a period of time. get the car done at someone who knows about these cars.

 

[bobsho49]

Thanks Endri Sho, but I think he should have replaced the whole water pump, as I think the o-ring was the original problem as he did not replace that part when he installed the new water pump, and being as he had no idea having never done one before he cheated, so when he ran the car it did the same thing when he squeezed the upper rad hose, know I need another CPS as he got the new one wet and know I get no spark
Bob

 

[Bob Gervais]

Hey, I see you're in RI? I'd be happy to help you out. Send me a PM on here, and we can exchange phone numbers.

 

[bobsho49]

great, update, mechanic ran a pressure test, no leaks at all watched him too it, car does turn over though, still does not want too start, mechanic thinks it is the PCM or the camshaft position sensor,

Bob My phone is 401-835-1476 and I live in Lincoln, and the car is in Lincoln, not a far ride from me about 2minutes could use the help as we both are stumped and fustrated as the car ran great before all these new aprts were put on.

 

[91PDXmocha]

The car will still start and run with a bad Cam sensor , just takes a while to crank .

Your " mechanic " did somthing wrong I think .
Having it die when you squeeze the hose makes no sense , especially if it doesn't leak , your problem is elsewhere .

My guess is bad timing . pull the timing tensioner access hole and make sure it's still secured correctly. Double check all grounds . Make sure you didn't unplug anything on accident ( coilpack plug came loose or somthing ) .
I think you are going to end up digging back down to the timing belt are redoing the timing .

 

[sperold]

Either it needs another crankshaft position sensor, or your DIS module on the cross-over tube is not grounded properly (2 bottom screws do the work). See post #8 for the grounds you need to tighten.