hard to start when hot (starter)
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hard to start when hot (starter)
I have a 90 5.8 out of a bronco. I put a c6 behind it but dont know the year on it. When the truck heats up it get hard to start, it sounds like the battery is dead. The starter barely moves. But when the rig cools down it starts right up.
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From: houston
Try cleaning all the connections w/a wire brush and spray some wd40 on them,make sure you battery is getting fully charged,put a starter insulation blanket on ,and check the timing,it may be advanced too far.Also keep an eye on your temp.,try to keep the engine @190F .No starter likes an overheated engine.
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Answered your questions dought they will help. I had the starter spaced out with two washers because it was making a squeking noise when it warmed up. This fixed it when it happened with my 5.0 but with my 5.8 it still seems to make the noise when it warms up. battery is an optima red top. The battery is outside the engine bay in the bed. The starter was just installed and is pretty new. It will do this with the engine around 190.
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From: Ottawa, Ontario
Well see.. I would have never guessed that combo, and it does present some possible issues that would not occur in a street truck application. Does the truck have headers on it and are they near the starter? Is an O2 sensor installed and connected to the computer? Two common causes of hard starting are overheating the starter due to close proximity to the exhaust, and rich engine operation that washes oil from the cylinder walls to increase hot cranking TQ. Both issues can be corrected however it sounds like your starter has issues to begin with so it may simply need replacing.
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they are exhusat manifolds although i did cut and turn up the angle on starter side manifold but its directed more away from the starter now. I will have to try another one of my starters for it. It does this even when i cruise around town too. The o2 is connected to the computer although its only in one of the exhusts ports before it connects to the single pipe. Not sure what my timing is at i will have to find a timing light for that one.
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Another thing you can do is pull the codes, a sensor problem will cause the motor to run open loop which is richer than normal. Do you have a check engine light wired into the Jeep? If so you can flash the codes on it, but if not you'll need a code reader.
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I got this problem when i switched from the AOD to a C6. I dont know the year the c6 came out of. Is there a difference in the starters? i didnt change that its using the same one i had on the e40d. i just set the timing to 10 degrees.
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OK.. I certainly hope that's not your starter running constantly and making that squeeking noise, it should only engage the flywheel while the engine cranks and should disengage once it's running. If it doesn't then you have the wrong starter or something messed up the the wiring.
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I did this and plus a thermal blanket and its still hard to start. Two different starters doing both the same thing too. So i dont think its the starter
Im thinking maybe something is going south in the tq converter to make it hard to start and making the noise. But this is just a guess. I put three trans coolers on it and it took longer for the noise to show up or at least felt like it did.
Im thinking maybe something is going south in the tq converter to make it hard to start and making the noise. But this is just a guess. I put three trans coolers on it and it took longer for the noise to show up or at least felt like it did.
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From: Hanford Ca.
I had a simler problem on my 70 mustang up grade the postive wire to 1 gage aand the groung to 0 it saterted great lots of tork could pull the car in gear up the drive way in drive tured about 800 1000 rps on start up real quick
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From: Okanagan
When its hot, check the battery case to see if it's hot as well.
Sounds like cracked plates in the battery to me... when its cold, it delivers a good surface charge and its able to start the motor fine, but when its charging, its overheating the battery due to a short or crack in the internal plates, causing hot electrolyte and inefficient power delivery. Be careful, if its hot, there is probably hydrogen being produced from it.
If it's cool, leave it for a while and when it's cold, pull the coil wire off and try starting it, running the starter for no more than 15 seconds. Leave it about a minute between attempts. If the starter stops turning before the 5th or 6th attempt, suspect the battery is the issue and try a new one.
EDIT: Or another thing you should check if the output voltage of the alternator. If the voltage regulator is malfunctioning, it will drastically overcharge the battery, causing the same heat issue.
Sounds like cracked plates in the battery to me... when its cold, it delivers a good surface charge and its able to start the motor fine, but when its charging, its overheating the battery due to a short or crack in the internal plates, causing hot electrolyte and inefficient power delivery. Be careful, if its hot, there is probably hydrogen being produced from it.
If it's cool, leave it for a while and when it's cold, pull the coil wire off and try starting it, running the starter for no more than 15 seconds. Leave it about a minute between attempts. If the starter stops turning before the 5th or 6th attempt, suspect the battery is the issue and try a new one.
EDIT: Or another thing you should check if the output voltage of the alternator. If the voltage regulator is malfunctioning, it will drastically overcharge the battery, causing the same heat issue.