Okay just change the thermostat in my 90 civic Si with d16a6 motor. Installation went fine until I tried to start it. The car tries to but just won't turn over. Any clues? Sounds like a hard start type problem(main relay type) but I don't think so. Thing is during the install I placed my hand near the throttle body area and something was loose. Dunno if I made it loose or if it was already loose. I will post pics and if somebody can tell me if they are supposed to be attached? Pics of their throttle body would be nice so I can reference.

Thanks


Close up


Moves freely. Don't know if it is supposed to be attached to cable of throttle body


All the way in forward position?

 

did you reconected the ground at the thermostat??

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by allhonda &raquo;</TD></TR><TR><TD CLASS="quote">did you reconected the ground at the thermostat??</TD></TR></TABLE>

yea check the ground and wires

 

that piece your pointing at is for Cruise control that ownt cause a hard start <TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vw eater &raquo;</TD></TR><TR><TD CLASS="quote">yea check the ground and wires </TD></TR></TABLE>



edit: also check your ground from your battery to chassis to tranny that will cause a no start if its not grounded properly~

 

well triple check, make sure the ground wire at the thermostat is tight , also the little linkage for the dashpot valvel goes into the metal arm on back of the throttlebody rotor

 

Uh no thats not for cruise control. That delays the throttle closing when you let off the gas and it is disconnected. I dont know why you're even asking since it should be ovbious, but see that little hook thing with a ring, just behind it? In the last pic, it's almost entirely behind it. Now go the rest of the way and open the throttle a bit and get that thing in the hole.

But they are correct, this won't cause your issue, but you do need that part connected. Make sure the dashpot is connected to a vaccum source as well.

Sounds like you forgot to hook up a ground or 3.

Janos

 

Thanks guys for all the help...I will check in the morning.

Just want to make sure that the car is starting(making noise) but not turning over.

As far as the throttle body/dash pot goes can anybody take a picture of how it is suppose to look?

Or send a e copy of the manual?

Thanks again guys

 

since you said you replaced the thermostat im going to agree and say that its the ground on the thermostat housing. ive seen this happen too many times

 

you dont need the dashpot, it just delays the closing of the throttle. newer cars dont even have them.

as soon as i read your thread title, i figured that the problem lies with the thermostat ground. i would check that first before anything else

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Janos Lin &raquo;</TD></TR><TR><TD CLASS="quote">Uh no thats not for cruise control. That delays the throttle closing when you let off the gas and it is disconnected. I dont know why you're even asking since it should be ovbious, but see that little hook thing with a ring, just behind it? In the last pic, it's almost entirely behind it. Now go the rest of the way and open the throttle a bit and get that thing in the hole.

But they are correct, this won't cause your issue, but you do need that part connected. Make sure the dashpot is connected to a vaccum source as well.

Sounds like you forgot to hook up a ground or 3.

Janos</TD></TR></TABLE>

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tech8 &raquo;</TD></TR><TR><TD CLASS="quote">

</TD></TR></TABLE> thats correct...i had to do this when mine popped out but that isn't why the car isn't starting, it is probably the ground.

Also you don't need a dashpot...just nice if you have a working one ... gl

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Heylookits shawn &raquo;</TD></TR><TR><TD CLASS="quote">you dont need the dashpot, it just delays the closing of the throttle. newer cars dont even have them.</TD></TR></TABLE>

That's because the ECU does it electronically instead of relying on a dedicated, and obsolete vaccum system. I doubt he's running OBD2 so it should be hooked up.


Janos

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Janos Lin &raquo;</TD></TR><TR><TD CLASS="quote">

That's because the ECU does it electronically instead of relying on a dedicated, and obsolete vaccum system. I doubt he's running OBD2 so it should be hooked up.


Janos</TD></TR></TABLE>

You are correct! The car is still powered by a d16a6 but it is rebuilt by Comptech USA

Anyways thanks for all your help guys. Tighten the bolt two full turns and voila! Car started

Thanks again...now be on the lookout because I will be selling this thing in the for sale forums